cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EROSITA Spectro-Imaging Analysis of the Abell 3408 Galaxy Cluster
Creators: name: Iljenkarevic, J.
name: Reiprich, T. H.
name: Pacaud, F.
name: Veronica, A.
name: Whelan, B.
name: Aschersleben, J.
name: Migkas, K.
name: Bulbul, E.
name: Sanders, J. S.
name: Ramos-Ceja, M. E.
name: Liu, T.
name: Ghirardini, V.
name: Liu, A.
name: Boller, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The X-ray telescope eROSITA onboard the newly launched SRG mission serendipitously observed the galaxy cluster A3408 ($z=0.0420$) during the PV observation of the AGN 1H0707-495. Despite its brightness and large extent, it has not been observed by any modern X-ray observatory. A neighbouring cluster in NW direction, A3407 ($z=0.0428$), appears to be close at least in projection ($\sim 1.7$ Mpc). This cluster pair could be in a pre- or post-merger state. We perform a detailed X-ray analysis of A3408. We construct particle background subtracted and exposure corrected images and surface brightness profiles in different sectors. The spectral analysis is performed out to $1.4r_{500}$. Additionally, a temperature map is presented depicting the distribution of the ICM temperature. Furthermore, we make use of data from the RASS to estimate some bulk properties of A3408 and A3407, using the growth curve analysis method and scaling relations. The imaging analysis shows a complex morphology of A3408 with a strong elongation in SE-NW direction. This is quantified by comparing the surface brightness profiles of the NW, SW, SE and NE directions, where the NW and SE directions show a significantly higher surface brightness compared to the other directions. We determine a gas temperature ${\rm k_B}T_{500}=(2.23\pm0.09)$ keV. The T-profile reveals a hot core within $2'$ of the emission peak, ${\rm k_B}T=3.04^{+0.29}_{-0.25}$ keV. Employing a M-T relation, we obtain $M_{500}=(9.27\pm0.75)\times 10^{13}M_{\odot}$ iteratively. The $r_{200}$ of A3407 and A3408 are found to overlap in projection which makes ongoing interactions plausible. The 2d T-map reveals higher temperatures in W than in E direction. A3407 and A3408 are likely in a pre-merger state, affecting the ICM properties, i.e., increased temperatures in the direction of A3407 indicate adiabatic compression or shocks due to the interaction.
description: 10 pages, 7 figures (main text), 2 figures (appendix). Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission
First eROSITA study of nearby M dwarfs and the rotation-activity relation in combination with TESS
Creators: name: Magaudda, E.
name: B., Stelzer
name: Raetz, St.
name: A, Klutsch
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first study of nearby M dwarfs with the ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Russian Spektrum-Roentgen-Gamma mission (SRG). To this end we extracted the Gaia DR2 data for the ~9000 nearby M dwarfs in the superblink proper motion catalog and calculated their stellar parameters from empirical relations with optical-IR colors. We cross-matched this catalog with the eROSITA Final Equatorial Depth Survey (eFEDS) and the first eROSITA all-sky survey (eRASS1). Our sample consists of 704 stars (SpT = K5-M7). This unprecedented data base for X-ray emitting M dwarfs allowed to quantitatively constrain the mass dependence of the X-ray luminosity, and to determine the change in the activity level with respect to pre-main-sequence stars. We also combined these data with the Transiting Exoplanet Survey Satellite (TESS) observations that are available for 501 of 704 X-ray detected M dwarfs and determined the rotation period for 180 of them. With the joint eROSITA-TESS sample, and combining it with our historical X-ray and rotation data for M dwarfs, we examined the mass dependence in the saturated regime of the rotation-activity relation. A first comparison of eROSITA hardness ratios and spectra shows that 65% of our X-ray detected M dwarfs have coronal temperatures of $\sim 0.5$ keV. We investigated their long-term X-ray variability by comparing the eRASS1 and ROSAT all-sky survey (RASS) measurements. Evidence for X-ray flares is found in various parts of our analysis: directly from inspection of the eFEDS light curves, in the relation between RASS and eRASS1 X-ray luminosities, and in stars displaying X-ray emission hotter than the bulk of the sample according to the hardness ratios. Finally, we point out the need of X-ray spectroscopy for more M dwarfs to study the coronal temperature-luminosity relation, not well constrained by our eFEDS results.
description: 23 pages, 46 images, 6 Tables. Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission. Abstract shortened for the arXiv listing
Exoplanet X-ray irradiation and evaporation rates with eROSITA
Creators: name: Foster, G.
name: Poppenhaeger, K.
name: Ilic, N.
name: Schwope, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High-energy irradiation is a driver for atmospheric evaporation and mass loss in exoplanets. This work is based on data from eROSITA, the soft X-ray instrument aboard SRG (Spectrum Roentgen Gamma) mission, as well as archival data from other missions, we aim to characterise the high-energy environment of known exoplanets and estimate their mass loss rates. We use X-ray source catalogues from eROSITA, XMM-Newton, Chandra and ROSAT to derive X-ray luminosities of exoplanet host stars in the 0.2-2 keV energy band with an underlying coronal, i.e. optically thin thermal spectrum. We present a catalogue of stellar X-ray and EUV luminosities, exoplanetary X-ray and EUV irradiation fluxes and estimated mass loss rates for a total of 287 exoplanets, 96 among them being characterised for the first time from new eROSITA detections. We identify 14 first time X-ray detections of transiting exoplanets that are subject to irradiation levels known to cause observable evaporation signatures in other exoplanets, which makes them suitable targets for follow-up observations.
description: 13 pages, 11 figures. To appear on A&A, Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission. Electronic data table will be made available on VizieR
Teleioliodes madininensis Grandjean 1934
Creators: name: Revelo-Tobar, Harol
name: Ojeda, Margarita
name: García-Ayala, Leonardo J.
name: Palacios-Vargas, José G.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Neoliodidae
Teleioliodes
Teleioliodes madininensis

description: Teleioliodes madininensis Grandjean, 1934
 Distribution: Neotropical.
 Records in Mexico: Quintana Roo and Veracruz.
 Biogeographic province: Yucatan Peninsula. Veracruzan.
 Habitat: Leaf litter and soil of medium sub evergreen forest, lowland forest, mangrove and halophyte vegetation. Soil and litter of Astrocaryum mexicanum and Guarea glabra. Low flooded rainforest soil. Pitfall traps in medium rainforest.
 References: Vázquez (1999): 71; Hoffmann & López-Campos (2000): 150; Vázquez & Prieto (2001): 78–79; Hoffmann & López-Campos (2002): 273; Alamilla-Pastrana et al. (2012): 52; Vázquez et al. (2016): 147–162; Villagomez et al. (2017): 31; Villagomez et al. (2019): 14637.
description: Published as part of Revelo-Tobar, Harol, Ojeda, Margarita, García-Ayala, Leonardo J. & Palacios-Vargas, José G., 2024, Checklist Of Oribatid Mites (Acari: Oribatida) From Mexico, pp. 1-178 in Zootaxa 5465 (1) on page 60, DOI: 10.11646/zootaxa.5465.1.1, http://zenodo.org/record/11613709
Martingale-induced local invariance in Progressive Quenching
Creators: name: Moslonka, Charles
name: Sekimoto, Ken
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Progressive quenching (PQ) is a stochastic process during which one fixes, one after another, the degrees of freedom of a globally coupled Ising spin system while letting it thermalize through a heat bath. It has previously been shown that during PQ, the mean equilibrium spin value follows a martingale process and this process can characterize the memory of the system. In the present study, we find that the aforementioned martingale implies a local invariance of the path weight for the total quenched magnetization, the Markovian process whose increment is the spin that is fixed last. Consequently, PQ lets the probability distribution for the total quenched magnetization evolve while keeping the Boltzmann-like factor, or a canonical structure, under constraint, which consists of a path-independent potential and a path-counting entropy. Moreover, when the PQ starts from full equilibrium, the probability distribution at each stage of PQ is found to be the limit distribution of what we call recycled quenching, the process in which a randomly chosen quenched spin is unquenched after a single step of PQ. The local invariance is a consequence of the martingale property, and not an application of known theorems for the martingale process.
description: 9 pages, 7 figures and a Supplemental Material
Supplementary document for Time delay interferometry with transfer oscillator - 6015337.pdf
Creators: name: Wu, Hanzhong
name: xu, mingyang
name: Wang, Panpan
name: Zhang, Zhenqi
name: fang, pengcheng
name: Tan, Yujie
name: Zhang, Jie
name: Chen, Qunfeng
name: Lu, Zehuang
name: Shao, Chenggang
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Performance measurement of the electrical devices
"TURKIY GULISTON YOXUD AXLOQ" ASARINING BOSHLANGʻICH TA'LIM OʻQUV - TARBIYAVIY JARAYONLARIDA AMALIY QOʻLLANISHI
Creators: name: Abrorxonova, Kamolaxon
name: Rajabova, Sarvinoz
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada Abdulla Avloniy qalamiga mansub “Turkiy Guliston yoxud axloq” asarining umumta’lim maktablarida, xususan, boshlang‘ich sinflarda o‘quv-tarbiyaviy jarayonlarda amaliy qo‘llash imkoniyatlari tahlil etilgan. Shu bilan birga, asar parchalari asosida o‘quvchilarning og‘zaki va yozma nutqini rivojlantirish, fikrlash madaniyatini o‘stirishga qaratilgan metodik tavsiyalar berilgan. Maqolada, shuningdek, asarning hozirgi ta’lim talablari va kompetensiyalariga uyg‘unligi, pedagogik-psixologik jihatdan qanday foydalanish mumkinligi ham ilmiy-nazariy jihatdan asoslab berilgan.
The eROSITA Final Equatorial-Depth Survey (eFEDS): Characterization of Morphological Properties of Galaxy Groups and Clusters
Creators: name: Ghirardini, V.
name: Bahar, E.
name: Bulbul, E.
name: Liu, A.
name: Clerc, N.
name: Pacaud, F.
name: Comparat, J.
name: Liu, T.
name: Ramos-Ceja, M. E.
name: Hoang, D.
name: Ider-Chitham, J.
name: Klein, M.
name: Merloni, A.
name: Nandra, K.
name: Ota, N.
name: Predehl, P.
name: Reiprich, T.
name: Sanders, J.
name: Schrabback, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Understanding the cluster population of clusters of galaxies is of the utmost importance for using cluster samples in both astrophysical and cosmological studies. We present an in-depth analysis of the X-ray morphological parameters of the galaxy clusters and groups detected in the eROSITA Final Equatorial-Depth Survey (eFEDS). We study the eROSITA X-ray imaging data for a sample of 325 clusters and groups that are significantly detected in the eFEDS field. We characterize their dynamical properties by measuring a number of dynamical estimators: concentration, central density, cuspiness, ellipticity, power-ratios, photon asymmetry, and Gini coefficient. The galaxy clusters and groups detected in eFEDS, covering a luminosity range of more than three orders of magnitude and large redshift range out to 1.2 provide an ideal sample for studying the redshift and luminosity evolution of the morphological parameters and characterization of the underlying dynamical state of the sample. Based on these measurements we construct a new dynamical indicator, relaxation score, for all the clusters in the sample. We find no evidence for bimodality in the distribution of morphological parameters of our clusters, rather we observe a smooth transition from the cool-core to non-cool-core and from relaxed to disturbed states. A significant evolution in redshift and luminosity is also observed in the morphological parameters examined in this study after carefully taking into account the selection effects. We determine that our eFEDS-selected cluster sample, differently than ROSAT-based cluster samples, is not biased toward relaxed clusters, but contains a similar fraction of disturbed as SZ surveys.
description: 21 pages, 10 figures, 2 tables, Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission
Marginal stability of soft anharmonic mean field spin glasses
Creators: name: Folena, Giampaolo
name: Urbani, Pierfrancesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the properties of the glass phase of a recently introduced spin glass model of soft spins subjected to an anharmonic quartic local potential, which serves as a model of low temperature molecular or soft glasses. We solve the model using mean field theory and show that, at low temperatures, it is described by full replica symmetry breaking (fullRSB). As a consequence, at zero temperature the glass phase is marginally stable. We show that in this case, marginal stability comes from a combination of both soft linear excitations -- appearing in a gapless spectrum of the Hessian of linear excitations -- and pseudogapped non-linear excitations -- corresponding to nearly degenerate two level systems. Therefore, this model is a natural candidate to describe what happens in soft glasses, where quasi localized soft modes in the density of states appear together with non-linear modes triggering avalanches and conjectured to be essential to describe the universal low-temperature anomalies of glasses.
description: main+appendix, 6 figures
Attention correlates with saccade amplitude modulations caused by gaze-contingent filtering of the visual field
Creators: name: Laubrock, Jochen
name: Cajar Anke
name: Ralf, Engbert
Publisher: name: F1000Research
Year: 2016

description: Degrading real-world scenes in the central or the peripheral visual field yields a characteristic pattern: mean saccade amplitudes increase with central and decrease with peripheral degradation. Does this effect reflect a mere adaptation of the saccadic system to the changed visual conditions or modulations of selective attention? If saccade amplitudes reflect attentional modulation, the observed pattern predicts more focused attention in the central region with peripheral degradation and an attentional bias toward the periphery with central degradation. To investigate whether the amplitude pattern reflects attention, we measured the detectability of peripheral (Experiment 1) or central (Experiment 2) attention probes during scene viewing when low or high spatial frequencies were gaze-contingently filtered in the central or the peripheral visual field. Target detectability was matched between full-field filter conditions by use of an adaptive threshold technique. Results strongly suggest that saccade amplitude modulations reflect selective attention.
Supplementary document for Simultaneous ground-state cooling of multiple degenerate mechanical modes through cross-Kerr effect - 6016226.pdf
Creators: name: Pengyu, Wen
name: Mao, Xuan
name: Wang, Min
name: Wang, Chuan
name: Li, Gui-Qin
name: Long, Gui Lu
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: supplemental document
Neuroimaging Meets Machine Learning: Identifying Neuroimaging-derived Predictors of Hand Grip Strength Independent of Age, Sex, and Body Composition
Creators: name: Komeyer, Vera
name: Eickhoff, Simon
name: Kasper, Jan
name: Grefkes-Hermann, Christian
name: Patil, Kaustubh
name: Raimondo, Federico
Publisher: name: Forschungzentrum Jülich
Year: 2025

description: DGKN Kongress für Klinische Neurowissenschaften mit Fortbildungsakademie, Frankfurt, Germany, 12 Mar 2025 - 15 Mar 2025
Bayesian Probabilistic Modelling for Four-Tops at the LHC
Creators: name: Alvarez, Ezequiel
name: Dillon, Barry M.
name: Faroughy, Darius A.
name: Kamenik, Jernej F.
name: Lamagna, Federico
name: Szewc, Manuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Monte Carlo (MC) generators are crucial for analyzing data in particle collider experiments. However, often even a small mismatch between the MC simulations and the measurements can undermine the interpretation of the results. This is particularly important in the context of LHC searches for rare physics processes within and beyond the standard model (SM). One of the ultimate rare processes in the SM currently being explored at the LHC, $pp\to t\bar tt \bar t$ with its large multi-dimensional phase-space is an ideal testing ground to explore new ways to reduce the impact of potential MC mismodelling on experimental results. We propose a novel statistical method capable of disentangling the 4-top signal from the dominant backgrounds in the same-sign dilepton channel, while simultaneously correcting for possible MC imperfections in modelling of the most relevant discriminating observables -- the jet multiplicity distributions. A Bayesian mixture of multinomials is used to model the light-jet and $b$-jet multiplicities under the assumption of their conditional independence. The signal and background distributions generated from a deliberately mistuned MC simulator are used as model priors. The posterior distributions, as well as the signal and background fractions, are then learned from the data using Bayesian inference. We demonstrate that our method can mitigate the effects of large MC mismodellings in the context of a realistic $t\bar tt\bar t$ search, leading to corrected posterior distributions that better approximate the underlying truth-level spectra.
description: Matches accepted version at PRD. 11 pages, 8 figures. This expanded version includes a toy model and explicit tests of the model validity for Four-Tops. Code available at https://github.com/ManuelSzewc/bayes-4tops
Phase diagram of the Shastry-Sutherland Compound SrCu2(BO3)2 under extreme combined conditions of field and pressure
Creators: name: Shi, Zhenzhong
name: Dissanayake, Sachith
name: Corboz, Philippe
name: Steinhardt, William
name: Graf, David
name: Silevitch, D. M.
name: Dabkowska, Hanna A.
name: Rosenbaum, T. F.
name: Mila, Frédéric
name: Haravifard, Sara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the intriguing properties of the Shastry-Sutherland compound SrCu2(BO3)2 under pressure, with a still debated intermediate plaquette phase appearing at around 20 kbar and a possible deconfined critical point at higher pressure upon entering the antiferromagnetic phase, we have investigated its high-field properties in this pressure range using tunnel diode oscillator (TDO) measurements. The two main new phases revealed by these measurements are fully consistent with those identified by infinite Projected Entangled Pair states (iPEPS) calculations of the Shastry-Sutherland model, a 1/5 plateau and a 10 x 2 supersolid. Remarkably, these phases are descendants of the full-plaquette phase, the prominent candidate for the intermediate phase of SrCu2(BO3)2. The emerging picture for SrCu2(BO3)2 is shown to be that of a system dominated by a tendency to an orthorhombic distortion at intermediate pressure, an important constraint on any realistic description of the transition into the antiferromagnetic phase.
Aleurodamaeus setosus Berlese 1883
Creators: name: Revelo-Tobar, Harol
name: Ojeda, Margarita
name: García-Ayala, Leonardo J.
name: Palacios-Vargas, José G.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Aleurodamaeidae
Aleurodamaeus
Aleurodamaeus setosus

description: Aleurodamaeus setosus Berlese, 1883
 Distribution: Southern Palearctic and Mexico.
 Records in Mexico: Quintana Roo.
 Biogeographic province: Yucatan Peninsula.
 Habitat: Leaf litter and soil of medium sub evergreen forest, lowland forest, mangrove and halophyte vegetation.
 References: Vázquez et al. (2016): 147–162.
description: Published as part of Revelo-Tobar, Harol, Ojeda, Margarita, García-Ayala, Leonardo J. & Palacios-Vargas, José G., 2024, Checklist Of Oribatid Mites (Acari: Oribatida) From Mexico, pp. 1-178 in Zootaxa 5465 (1) on page 60, DOI: 10.11646/zootaxa.5465.1.1, http://zenodo.org/record/11613709
Solutions to integrable space-time shifted nonlocal equations
Creators: name: Liu, Shi-min
name: Wang, Jing
name: Zhang, Da-jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper we present a reduction technique based on bilinearization and double Wronskians (or double Casoratians) to obtain explicit multi-soliton solutions for the integrable space-time shifted nonlocal equations introduced very recently by Ablowitz and Musslimani in [Phys. Lett. A, 2021]. Examples include the space-time shifted nonlocal nonlinear Schrödinger and modified Korteweg-de Vries hierarchies and the semi-discrete nonlinear Schrödinger equation. It is shown that these nonlocal integrable equations with or without space-time shift(s) reduction share same distributions of eigenvalues but the space-time shift(s) brings new constraints to phase terms in solutions.
description: 16 pages
Relating the Diverse Merger Histories and Satellite Populations of Nearby Galaxies
Creators: name: Smercina, Adam
name: Bell, Eric F.
name: Samuel, Jenna
name: D'Souza, Richard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate whether the considerable diversity in the satellite populations of nearby Milky Way (MW)-mass galaxies is connected with the diversity in their host's merger histories. Analyzing 8 nearby galaxies with extensive observations of their satellite populations and stellar halos, we characterize each galaxy's merger history using the metric of its most dominant merger, $M_{\rm \star,Dom}$, defined as the greater of either its total accreted stellar mass or most massive current satellite. We find an unexpectedly tight relationship between these galaxies' number of $M_{V}\,{
description: 26 pages, 8 figures, 3 tables; Accepted for publication in ApJ
Stable Recovery of Weighted Sparse Signals from Phaseless Measurements via Weighted l1 Minimization
Creators: name: Huo, Haiye
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: Functional Analysis (math.FA)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: The goal of phaseless compressed sensing is to recover an unknown sparse or approximately sparse signal from the magnitude of its measurements. However, it does not take advantage of any support information of the original signal. Therefore, our main contribution in this paper is to extend the theoretical framework for phaseless compressed sensing to incorporate with prior knowledge of the support structure of the signal. Specifically, we investigate two conditions that guarantee stable recovery of a weighted $k$-sparse signal via weighted l1 minimization without any phase information. We first prove that the weighted null space property (WNSP) is a sufficient and necessary condition for the success of weighted l1 minimization for weighted k-sparse phase retrievable. Moreover, we show that if a measurement matrix satisfies the strong weighted restricted isometry property (SWRIP), then the original signal can be stably recovered from the phaseless measurements.
description: 12 pages
21cmVAE: A Very Accurate Emulator of the 21-cm Global Signal
Creators: name: Bye, Christian H.
name: Portillo, Stephen K. N.
name: Fialkov, Anastasia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Considerable observational efforts are being dedicated to measuring the sky-averaged (global) 21-cm signal of neutral hydrogen from Cosmic Dawn and the Epoch of Reionization. Deriving observational constraints on the astrophysics of this era requires modeling tools that can quickly and accurately generate theoretical signals across the wide astrophysical parameter space. For this purpose artificial neural networks were used to create the only two existing global signal emulators, 21cmGEM and globalemu. In this paper we introduce 21cmVAE, a neural network-based global signal emulator, trained on the same dataset of ~30,000 global signals as the other two emulators, but with a more direct prediction algorithm that prioritizes accuracy and simplicity. Using neural networks, we compute derivatives of the signals with respect to the astrophysical parameters and establish the most important astrophysical processes that drive the global 21-cm signal at different epochs. 21cmVAE has a relative rms error of only 0.34 - equivalently 0.54 mK - on average, which is a significant improvement compared to the existing emulators, and a run time of 0.04 seconds per parameter set. The emulator, the code, and the processed datasets are publicly available at https://github.com/christianhbye/21cmVAE and through https://zenodo.org/record/5904939.
description: 11 pages, 7 figures, 2 tables (including appendices). In press (ApJ). Code available at https://github.com/christianhbye/21cmVAE
ResearchBox 781, 'Registered Replication of Piff et al. (2012)', https://researchbox.org/781
Creators: name: Minah Jung
name: Jan Stoop
name: Paul Smeets
name: Joachim Vosgerau
Publisher: name: Zenodo
Year: 2022

description: Box title: 'Registered Replication of Piff et al. (2012)'   Reference: Minah H. Jung, Paul Smeets, Jan Stoop, Joachim Vosgerau, 'A Registered Report on Two Direct, Preregistered Replications of the Field Studies in Piff et al. (2012)', Journal of Experimental Psychology: GeneralNote: this backup was created automatically by a ResearchBox bot
SRG/ART-XC discovery of SRGA J204318.2+443815: towards the complete population of faint X-ray pulsars
Creators: name: Lutovinov, A. A.
name: Tsygankov, S. S.
name: Mereminskiy, I. A.
name: Molkov, S. V.
name: Semena, A. N.
name: Arefiev, V. A.
name: Bikmaev, I. F.
name: Djupvik, A. A.
name: Gilfanov, M. R.
name: Karasev, D. I.
name: Lapshov, I. Yu.
name: Medvedev, P. S.
name: Shtykovsky, A. E.
name: Sunyaev, R. A.
name: Tkachenko, A. Yu.
name: Anand, S.
name: Ashley, M. C. B.
name: De, K.
name: Kasliwal, M. M.
name: Kulkarni, S. R.
name: van Roestel, J.
name: Yao, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report a discovery of a new long-period X-ray pulsar SRGA J204318.2+443815/SRGe J204319.0+443820 in the Be binary system. The source was found in the second all-sky survey by the Mikhail Pavlinsky telescope on board the SRG mission. The follow-up observations with XMM-Newton, NICER and NuSTAR observatories allowed us to discover a strong coherent signal in the source light curve with the period of $\sim742$ s. The pulsed fraction was found to depend on the energy increasing from $\sim20$% in soft X-rays to $>50$% at high energies, as it is typical for X-ray pulsars. The source demonstrate a quite hard spectrum with an exponential cutoff at high energies and bolometric luminosity of $L_X \simeq 4\times10^{35}$ erg/s. Dedicated optical and infrared observations with the RTT-150, NOT, Keck and Palomar telescopes revealed a number of emission lines (H$_α$, HeI, Pashen and Braket series) with the strongly absorbed continuum. All of above suggests that SRGAJ204318.2+443815/ SRGeJ204319.0+443820 is a new persistent low luminosity X-ray pulsar in a distant binary system with a Be-star of the B0-B2e class. Thus the SRG observatory allow us to unveil the hidden population of faint persistent objects including the population of slowly rotating X-ray pulsars in Be systems.
description: Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission. 9 pages, 9 figures
Peculiar X-ray transient SRGA J043520.9+552226/AT2019wey discovered with SRG/ART-XC
Creators: name: Mereminskiy, I. A.
name: Dodin, A. V.
name: Lutovinov, A. A.
name: Semena, A. N.
name: Arefiev, V. A.
name: Atapin, K. E.
name: Belinski, A. A.
name: Burenin, R. A.
name: Burlak, M. V.
name: Eselevich, M. V.
name: Fedotieva, A. A.
name: Gilfanov, M. R.
name: Ikonnikova, N. P.
name: Krivonos, R. A.
name: Lapshov, I. Yu.
name: Lyapin, A. R.
name: Medvedev, P. S.
name: Molkov, S. V.
name: Postnov, K. A.
name: Pshirkov, M. S.
name: Sazonov, S. Yu.
name: Shakura, N. I.
name: Shtykovsky, A. E.
name: Sunyaev, R. A.
name: Tatarnikov, A. M.
name: Tkachenko, A. Yu.
name: Zheltoukhov, S. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context: During the ongoing all-sky survey, the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory should discover new X-ray sources, many of which can be transient. Here we report on the discovery and multiwavelength follow-up of a peculiar X-ray source SRGA J043520.9+552226=SRGe J043523.3+552234 - the high-energy counterpart of the optical transient AT2019wey. Aims: Thanks to its sensitivity and the survey strategy, the Mikhail Pavlinsky ART-XC telescope uncovers poorly studied weak transient populations. Using a synergy with current public optical surveys, we are aiming at revealing the nature of these transients to study its parent populations. The SRGA J043520.9+552226 is the first transient detected by ART-XC which has a bright optical counterpart suitable for further studies. Methods: We have used available public X-ray and optical data and observations with SRG, INTEGRAL, NuSTAR, NICER and ground-based telescopes to investigate the source spectral energy distributions at different phases of the outburst. Results: Based on X-ray spectral and timing properties derived from space observations, optical spectroscopy and photometry obtained with the 2.5-m and RC600 CMO SAI MSU telescopes, we propose the source to be a black hole in a low-mass close X-ray binary system.
description: Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission. 9 pages, 6 figures
O'QUVCHILARNING  NUTQI BUZILISHINI PSIXOLOGIK-PEDAGOGIK TUZATISH
Creators: name: Toshtemirova Mohinur Akram qizi. Nomozova Muharram Boynazar qizi Denov tadbirkorlik va pedagogika instituti Pedagogika fakulteti Boshlang`ich ta`lim yo`nalishi 3-bosqich talabalari
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada o‘quvchilarda uchraydigan nutq buzilishlari va ularni psixologik-pedagogik usullar orqali tuzatishning nazariy va amaliy asoslari tahlil qilinadi. Nutq rivojlanishidagi muammolarni aniqlash, turli xil tuzatish texnologiyalarini qo‘llash va ta'lim jarayoniga integratsiyalash zarurligi asoslab beriladi.
Losing a minute every two years: SRG X-ray view on the rapidly accelerating X-ray pulsar SXP1323
Creators: name: Mereminskiy, I. A.
name: Mushtukov, A. A.
name: Lutovinov, A. A.
name: Tsygankov, S. S.
name: Semena, A. N.
name: Molkov, S. V.
name: Shtykovsky, A. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: SXP 1323 is a peculiar high-mass X-ray binary located in the Small Magellanic Cloud, renowned for its rapid spin-up. We investigate for the first time broadband X-ray properties of SXP1323, as observed by the Mikhail Pavlinsky ART-XC and eRosita telescopes on board the SRG observatory. Using ART-XC and eRosita, data we produced first broadband 1-20 keV X-ray spectrum and estimated pulsed fraction above 8 keV. With the addition of archival XMM-Newton observations we traced evolution of the SXP 1323 spin period over the last five years and found that after 2016 the source switched to a linear spin-up with rate of -29.9 s yr$^{-1}$. Broadband X-ray spectrum is typical for accreting X-ray pulsars, with steep powerlaw index ($Γ$=-0.15) and exponential cutoff energy of 5.1 keV. No significant difference between spectra obtained in states with and without pulsations were found.
description: Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission. 5 pages, 3 figures
ResearchBox 784, 'A replication of Dunn, Aknin, and Norton (2008)', https://researchbox.org/784
Creators: name: Minah Jung
name: Leif Nelson
Publisher: name: Zenodo
Year: 2022

description: Box title: 'A replication of Dunn, Aknin, and Norton (2008)'   Reference: Kim G, Adams I, Diaw M, Celly M, Nelson LD, Jung MH. (2022) 'Prosocial spending encourages happiness: A replication of the only experiment reported in Dunn, Aknin, and Norton (2008)'. PLOS ONE. V17(9):e0272434. doi: https://doi.org/10.1371/journal.pone.0272434Note: this backup was created automatically by a ResearchBox bot
Supplementary document for Efficient mid-infrared linear-to-circular polarization conversion using a nanorod-based metasurface - 6016736.pdf
Creators: name: Zou, Huanling
name: Nash, Geoffrey
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: experiment setup diagram of measuring Stokes parameters and ellipse parameters as a funtion of wavelength from 3-10um
Harlequin Ichthyosis- Prenatal diagnosis with Two- and Three-Dimensional ultrasound at 30 weeks
Creators: name: Chawla, Anirudh
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Ear / Nose / Throat
subject: Eyes
subject: Foetal imaging
subject: Head and neck
subject: Soft tissues / Skin
subject: PACS
subject: Ultrasound
subject: Diagnostic procedure
subject: History
subject: Congenital
subject: Connective tissue disorders

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 23 years
description: Clinical History: A 25 year old female with no significant past history was referred for her first antenatal ultrasound at 30 weeks gestational age. Two- and three-dimensional ultrasonography was done. She delivered preterm by spontaneous normal vaginal delivery at 32 week... Final Diagnosis: Harlequin Ichthyosis
The eROSITA Final Equatorial-Depth Survey (eFEDS): X-ray Observable-to-Mass-and-Redshift Relations of Galaxy Clusters and Groups with Weak-Lensing Mass Calibration from the Hyper Suprime-Cam Subaru Strategic Program Survey
Creators: name: Chiu, I-Non
name: Ghirardini, Vittorio
name: Liu, Ang
name: Grandis, Sebastian
name: Bulbul, Esra
name: Bahar, Y. Emre
name: Comparat, Johan
name: Bocquet, Sebastian
name: Clerc, Nicolas
name: Klein, Matthias
name: Liu, Teng
name: Li, Xiangchong
name: Miyatake, Hironao
name: Mohr, Joseph
name: Oguri, Masamune
name: Okabe, Nobuhiro
name: Pacaud, Florian
name: Ramos-Ceja, Miriam E.
name: Reiprich, Thomas H.
name: Schrabback, Tim
name: Umetsu, Keiichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the first weak-lensing mass calibration and X-ray scaling relations of galaxy clusters and groups selected in the $eROSITA$ Final Equatorial Depth Survey (eFEDS) observed by Spectrum Roentgen Gamma/$eROSITA$ over a contiguous footprint with an area of $\approx140$ deg$^2$, using the three-year (S19A) weak-lensing data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. In this work, a sample of $434$ optically confirmed galaxy clusters (and groups) at redshift $0.01\lesssim z \lesssim1.3$ with a median of $0.35$ is studied, of which $313$ systems are uniformly covered by the HSC survey to enable the extraction of the weak-lensing shear observable. In a Bayesian population modelling, we perform a blind analysis for the weak-lensing mass calibration by simultaneously modelling the observed count rate $η$ and the shear profile $g$ of individual clusters through the count rate-to-mass-and-redshift ($η$--$M_{500}$--$z$) and weak-lensing mass-to-mass-and-redshift ($M_{\mathrm{WL}}$--$M_{500}$--$z$) relations, respectively, while accounting for the bias in these observables using simulation-based calibrations. As a result, the count rate-inferred and lensing-calibrated cluster mass is obtained from the joint modelling of the scaling relations, as the ensemble mass spanning a range of $10^{13}h^{-1}M_{\odot}\lesssim M_{500}\lesssim10^{15} h^{-1}M_{\odot}$ with a median of $\approx10^{14} h^{-1}M_{\odot}$ for the eFEDS sample. With the mass calibration, we further model the X-ray observable-to-mass-and-redshift relations, including the rest-frame soft-band and bolometric luminosity ($L_{\mathrm{X}}$ and $L_{\mathrm{b}}$), the emission-weighted temperature $T_{\mathrm{X}}$, the mass of intra-cluster medium $M_{\mathrm{g}}$, and the mass proxy $Y_{\mathrm{X}}$, which is the product of $T_{\mathrm{X}}$ and $M_{\mathrm{g}}$. (abridged)
description: Accepted for publication in A&A. Submitted to A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission
SRG/ART-XC all-sky X-ray survey: Catalog of sources detected during the first year
Creators: name: Pavlinsky, M.
name: Sazonov, S.
name: Burenin, R.
name: Filippova, E.
name: Krivonos, R.
name: Arefiev, V.
name: Buntov, M.
name: Chen, C. -T.
name: Ehlert, S.
name: Lapshov, I.
name: Levin, V.
name: Lutovinov, A.
name: Lyapin, A.
name: Mereminskiy, I.
name: Molkov, S.
name: Ramsey, B. D.
name: Semena, A.
name: Semena, N.
name: Shtykovsky, A.
name: Sunyaev, R.
name: Tkachenko, A.
name: Swartz, D. A.
name: Vikhlinin, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a first catalog of sources detected by the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory in the 4-12 keV energy band during its ongoing all-sky survey. The catalog comprises 867 sources detected on the combined map of the first two 6-month scans of the sky (December 2019 - December 2020). The achieved sensitivity to point sources varies between ~4x10^-12 erg/s/cm2 near the ecliptic plane and ~8x10^-13 erg/s/cm2 (4-12 keV) near the ecliptic poles, and the typical localization accuracy is ~15 arcsec. Of the 750 sources of known or suspected origin in the catalog, 56% are extragalactic (mostly active galactic nuclei, AGN; and clusters of galaxies) and the rest are Galactic (mostly cataclysmic variables, CVs; and low- and high-mass X-ray binaries). For 114 sources, ART-XC has detected X-rays for the first time. Although the majority of these (~80) are expected to be spurious (given the adopted detection threshold), there can be a significant number of newly discovered astrophysical objects. We have started a program of optical follow-up observations of the new and previously unidentified X-ray sources, which has already led to the identification of several AGN and CVs. With the SRG all-sky survey planned to continue for a total of four years, we can expect the ART-XC survey in the 4-12 keV band to significantly surpass previous surveys that were carried out in similar (medium X-ray) energy bands in terms of the combination of angular resolution, sensitivity, and sky coverage.
description: To appear on A&A, Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission; 40 pages, 10 figures, the catalog of sources is included
Correlative image learning of chemo-mechanics in phase-transforming solids
Creators: name: Deng, Haitao D.
name: Zhao, Hongbo
name: Jin, Norman L.
name: Hughes, Lauren
name: Savitzky, Benjamin
name: Ophus, Colin
name: Fraggedakis, Dimitrios
name: Borbély, András
name: Yu, Young-Sang
name: Lomeli, Eder
name: Yan, Rui
name: Liu, Jueyi
name: Shapiro, David A.
name: Cai, Wei
name: Bazant, Martin Z.
name: Minor, Andrew M.
name: Chueh, William C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Constitutive laws underlie most physical processes in nature. However, learning such equations in heterogeneous solids (e.g., due to phase separation) is challenging. One such relationship is between composition and eigenstrain, which governs the chemo-mechanical expansion in solids. In this work, we developed a generalizable, physically-constrained image-learning framework to algorithmically learn the chemo-mechanical constitutive law at the nanoscale from correlative four-dimensional scanning transmission electron microscopy and X-ray spectro-ptychography images. We demonstrated this approach on Li$_X$FePO$_4$, a technologically-relevant battery positive electrode material. We uncovered the functional form of composition-eigenstrain relation in this two-phase binary solid across the entire composition range (0 $\leq$ X $\leq$ 1), including inside the thermodynamically-unstable miscibility gap. The learned relation directly validates Vegard's law of linear response at the nanoscale. Our physics-constrained data-driven approach directly visualizes the residual strain field (by removing the compositional and coherency strain), which is otherwise impossible to quantify. Heterogeneities in the residual strain arise from misfit dislocations and were independently verified by X-ray diffraction line profile analysis. Our work provides the means to simultaneously quantify chemical expansion, coherency strain and dislocations in battery electrodes, which has implications on rate capabilities and lifetime. Broadly, this work also highlights the potential of integrating correlative microscopy and image learning for extracting material properties and physics.
Project Web page and communication tools
Creators: name: AQUIMER
Publisher: name: Zenodo
Year: 2024

description: This deliverable presents the communication tools developed during the first 4 months of the CIRCALGAE project. It completes deliverable D6.1 " Dissemination, communication and networking plan" and will be completed, at the end of the project, by deliverable D6.6 "Final report on the dissemination, communication and networking plan".
Logarithmic corrections to the QCD component of same-sign W-pair production for VBS studies
Creators: name: Andersen, Jeppe R.
name: Ducloué, Bertrand
name: Elrick, Conor
name: Maier, Andreas
name: Nail, Graeme
name: Smillie, Jennifer M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of the first calculation of the logarithmic corrections to the QCD contribution to same-sign $W$-pair production, $pp\to e^\pm ν_e μ^\pm ν_μjj$, for same-sign charged leptons. This includes all leading logarithmic contributions which scale as $α_W^4 α_s^{2+k}\log^k(\hat s/p_\perp^2)$. This process is important for the study of electroweak couplings and hence the QCD contributions are usually suppressed through a choice of Vector Boson Scattering (VBS) cuts. These select regions of phase space where logarithms in $\hat s/p_\perp^2$ are enhanced. While the logarithmic corrections lead to a small change for the cross sections, several distributions relevant for experimental studies are affected more significantly.
description: 20 pages, 10 figures v2: Matches published version (Dec 2021)
ResearchBox 797, 'Estimating Treatment Effects with the EIRM', https://researchbox.org/797
Creators: name: Joshua Gilbert
Publisher: name: Zenodo
Year: 2023

description: Box title: 'Estimating Treatment Effects with the EIRM'   Reference: Gilbert JB. (2024) 'Estimating Treatment Effects with the Explanatory Item Response Model'. Journal of Research on Educational Effectiveness. :1-19. doi: https://doi.org/10.1080/19345747.2023.2287601Note: this backup was created automatically by a ResearchBox bot
Muonic Force Behind Flavor Anomalies
Creators: name: Greljo, Admir
name: Soreq, Yotam
name: Stangl, Peter
name: Thomsen, Anders Eller
name: Zupan, Jure
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We develop an economical theoretical framework for combined explanations of the flavor physics anomalies involving muons: $(g-2)_μ$, $R_{K^{(*)}}$, and $b \to s μ^+ μ^-$ angular distributions and branching ratios, that was first initiated by some of us in Ref. [1]. The Standard Model (SM) is supplemented with a lepton-flavored $\mathrm{U}(1)_X$ gauge group. The $\mathrm{U}(1)_X$ gauge boson with the mass of $\mathcal{O}(0.1)$ GeV resolves the $(g-2)_μ$ tension. A TeV-scale leptoquark, charged under the $\mathrm{U}(1)_X$, carries a muon number and mediates $B$-decays without prompting charged lepton flavor violation or inducing proton decay. We explore the theory space of the chiral, anomaly-free $\mathrm{U}(1)_X$ gauge extensions featuring the above scenario, and identify many suitable charge assignments for the SM$+3ν_R$ fermion content with the integer charges in the range $X_{F_i} \in [-10,10]$. We then carry out a comprehensive phenomenological study of the muonic force in representative benchmark models. Interestingly, we found models which can resolve the tension without conflicting the complementary constraints, and all of the viable parameter space will be tested in future muonic resonance searches. Finally, the catalog of the anomaly-free lepton-non-universal charge assignments motivated us to explore different directions in model building. We present a model in which the muon mass and the $(g-2)_μ$ are generated radiatively from a common short-distance dynamics after the $\mathrm{U}(1)_X$ breaking. We also show how to charge a vector leptoquark under $\mathrm{U}(1)_{μ- τ}$ in a complete gauge model.
description: 49 pages, 10 figures, 2 tables. Auxiliary file containing suitable charge assignments. v2: Additional neutrino bounds added, new benchmarks added, discussion extended
Multiparameter persistent homology via generalized Morse theory
Creators: name: Bubenik, Peter
name: Catanzaro, Michael J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 55N31, 57R45

description: We define a class of multiparameter persistence modules that arise from a one-parameter family of functions on a topological space and prove that these persistence modules are stable. We show that this construction can produce indecomposable persistence modules with arbitrarily large dimension. In the case of smooth functions on a compact manifold, we apply cobordism theory and Cerf theory to study the resulting persistence modules. We give examples in which we obtain a complete description of the persistence module as a direct sum of indecomposable summands and provide a corresponding visualization.
description: 21 pages, added proof of stability, added statistical motivation, improvements in exposition thanks to referee's comments