cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-y2wb687
title: 088518

description: The ultraluminous X-ray source population is now broadly expected to be dominated by super-Eddington accretors comma  thanks to the broadband spectroscopy provided by XMM and NuSTAR in combination comma  the detection of X-ray pulsations from a growing subset of ULXs openParunambiguously confirming them as super-Eddington neutron starsclosePar and the detection of powerful outflows from a handful of systems. NGC5055 ULX1 is an extreme ULX openParLopenParX comma peakclosePar virgul 1e40 erg-sclosePar that has received very little observational attention to date. Here comma  we proposal a deep comma  coordinated XMM+NuSTAR observation openPar130+150ks exposures comma  respectivelyclosePar in order to constrain its broadband spectrum comma  search for pulsations comma  and atomic outflow signatures. These observations will provide the first robust constraints on the nature of this extreme binary
DOI: 10.57780/esa-y3wpdtb
title: 086448

description: The space weather experienced by exoplanets is dictated by conditions present in the corona of the star. X-ray observations measure the coronal base density comma  while low- frequency radio emission traces higher comma  more tenuous coronal layers. We have recently achieved the first low-frequency detections of M dwarfs comma  which we interpret as evidence of star-exoplanet interactions. However comma  such an interpretation relies heavily on the measurements of the coronal base density from X-rays. Three of our low-frequency detected M dwarfs are not detected by ROSAT. The proposed observations will allow us to determine whether the radio emission is originating in a star-like atmosphere comma  where the emitting electrons are embedded in a corona comma  or from a planet-like magnetosphere.
DOI: 10.57780/esa-y7a9ogz
title: 091179

description: #1 em01_140084_020_ML00023_001_c946 #2 em01_209084_020_ML00124_002_c946 #3 em01_044099_020_ML00016_002_c946 #4 em01_135051_020_ML00007_003_c946 #6 #7 #14 AT2018fyk #8 2mass j09204562+2339008 #9 S4 0954+65 #10 IRAS F01004-2237 #17 J114447.77-430859.3
DOI: 10.57780/esa-y8jadlk
title: 089071

description: We propose a joint NuSTAR and XMM observation of NGC4631 openPard=7MpcclosePar comma  a nearby metal-poor galaxy openParZ-Z sun virgul 0.2closePar with multiple luminous HMXBs. We will openPar1closePar examine the nature and accretion states of the HMXBs via color diagnostics comma  openPar2closePar measure the galaxy-integrated 0.3-30 keV spectrum to calibrate the bolometric correction for low metallicity galaxies comma  and openPar3closePar investigate the contribution of each bright source to this spectrum. As an ancillary science goal comma  we will search for the signature of inverse Compton emission from electrons accelerated in the magnetic field of the galaxy.
DOI: 10.57780/esa-ye4d418
title: 082359

description: Magnetars are a small class of neutron stars mainly powered by their huge magnetic fields. They go through long stretches of quiescence comma  interrupted by periods of activity comma  via large flares and yearly-timescale X-ray outbursts. Magnetar activity has been recently observed also in other pulsar classes. Observations performed during comma  and immediately after such periods yield the largest amount of information on this magnetic emission comma  allowing one to test the theoretical models on a variety of phenomena and source states. We propose a Joint XMM openPar85ksclosePar and NuSTAR openPar170ksclosePar ToO program openPar1 trigger of 4 observations over a few monthsclosePar aimed at gathering new physical insight on the crust and field configuration of sources showing magnetar outbursts.
DOI: 10.57780/esa-yi636j0
title: 089044

description: The X-ray spectral analysis of new Compton thick openParCT-closePar active galactic nuclei openParAGNclosePar represents a fundamental step to understand the physics of the obscuring material surrounding accreting super-massive black holes. However comma  at the present day comma  CT-AGN remain extremely hard to detect. Implementing previously successful selection criteria comma  we propose to target 2 low-redshift candidate CT-AGN from the Swift-BAT 150-month catalog with joint 50 ks NuSTAR and 30 ks XMM-Newton observations each. This analysis will help determine the true intrinsic fraction of CT-AGN in the local universe and their contribution to the Cosmic X-ray Background openParCXBclosePar.
DOI: 10.57780/esa-yjoo9jf
title: 085040

description: We propose to perform the last year of a joined monitoring campaign of a z = 0.94 gravitationally lensed blazar B0218+357 by MAGIC comma  NOT and KaVA with an additional X-ray coverage by Swift and ASTROSAT. The monitoring times are optimized such to allow us to observe flares both in leading and trailing component openParboth separated by about 11 daysclosePar. The data will be used in a broadband modelling of the emission from the source and search for microlensing effects.
DOI: 10.57780/esa-yjqht4k
title: 086043

description: Millisecond pulsars have boosted in number thanks to the detection of high energy GeV emission by Fermi. Those in compact binaries with nondegenerate companions comma the redbacks openParRBclosePar comma  challenge the evolutionary link between neutron star low mass X-ray binary and rotation-powered radio pulsars with 3 systems found to transit between the two stages.A new gamma-ray source has been recently identified with the energetic radio pulsar PSRJ1431-4715 in a RB sharing similarities with the 3 transitional pulsars. We propose to study for the first time the X-ray emission arising from an intrabinary shock between the powerful pulsar and companion winds to determine the energy budget and the amount of irradiation of the companion comma  a key parameter to understand how RBs undergo transitions.
DOI: 10.57780/esa-ymkbdyw
title: 086342

description: Contrary to expectations from current stellar evolutionary models comma  recent observations uncovered the ejection of shells of material by massive stars in the years before the supernova openParSNclosePar explosion. The physical mechanism behind the impulsive mass ejection synchronized with the stellar core-collapse is unclear. Here we propose a coordinated XMM-NuSTAR effort to map the evolution of the broad-band X-ray spectrum of 1 nearby openPard<50 MpcclosePar strongly interacting SN and enable progress. Our program has the immediate goal to characterize the medium around strongly interacting SN comma  which originate from stellar progenitors with the most extreme mass loss before explosion.
DOI: 10.57780/esa-yn76kos
title: 084055

description: We propose a 130 ks observation of the MUSE Ultra Deep Field openParMUDFclosePar which comma  upon completion comma  will be the deepest openParup to 300hclosePar spectroscopic survey ever done with MUSE-VLT. MUDF is centered on a unique field openParP2139-443closePar of two bright comma  physically associated quasars at zvirgul3.23 comma  separated by virgul500 kpc in projection. Both quasars are embedded within large Ly nebulae openParvirgul100 kpcclosePar comma  which are suggestive of an extended filament connecting the two halos of the quasars. Our main aim is to collect high-quality X-ray spectra to characterise the physical properties openPare.g. X-ray slope comma  luminosities comma  gas column densities comma  accretion rateclosePar in the innermost region of this pair with physically associated extended Ly nebulae.
DOI: 10.57780/esa-yp5f568
title: 084273

description: Compact elliptical galaxies openParCEGsclosePar are local analogs of the high-redshift ..red nuggets. thought to represent progenitors of today.s early-type galaxies. CEGs comma  being low-redshift comma  are much more accessible to detailed observational study. Analysis of shallow Chandra observations of two well-studied CEGs in optical-IR reveals extended comma  luminous hot gas halos implying massive galaxies with M200 virgul openPar5-10closePar x 10elevkeyOpen 12keyClose  Msun. We propose a deep follow-up observation of one of these targets to map its gravitating mass profile out to a radius virgulr_keyOpen 2500keyClose  and measure the halo concentration comma  total mass comma  and baryon fraction.
DOI: 10.57780/esa-ysejh65
title: 088281

description: One of the biggest challenges in modern radio astronomy is understanding what causes the Fanaroff-Riley morphological dichotomy in powerful radio galaxies openParFR-I-IIclosePar. PKS2250-351 openParz=0.2115closePar is a rare example of a hybrid morphology source openParHyMoRSclosePar comma  with an FR-II hotspot and an FR-I jet and lobe on either side. PKS 2250-351 is located within the rich Abell 3936 galaxy cluster. We propose XMM-Newton observations to unveil the temperature comma  luminosity and substructure of Abell 3936. These first even X-ray observations of the large scale environment around a HyMoRS are uniquely positioned to test whether the FR-I-II dichotomy is caused by interaction between the jets of PKS2250-351 with an overdense comma  asymmetric environment and will yield crucial insights into jet launching in black holes.
DOI: 10.57780/esa-yubzeu1
title: 086146

description: Supergiant Fast X-ray Transients show rare outbursts comma while most of the time they are in a fainter state.The physical mechanism driving this behavior is controversial comma  with two competing modelsdoublePoint quasi-spherical settling accretion and the propeller mechanism. Our analysis of archival XMM observations allowed us to select SFXT flares in an automatic way and to compare their timescales with the theory of magnetospheric instability in the NS magnetosphere. To get a statistically robust comparison with the models comma  it is crucial to enlarge the number of flares.This will result in the determination of the dimensionless parameters involved in the Rayleigh Taylor instability comma  impossible to obtain from the theory comma  directly probing the physics of the NS magnetosphere.
DOI: 10.57780/esa-yxbi0lf
title: 090318

description: Swift J1818.0-1607 is a radio-loud magnetar that went into outburst in 2020 March. Its spin period of 1.36 s and its derivative imply a field strength of 4e14 G comma  a very young age virgul500 years comma  and a spin down power of 1e36 erg-s comma  the largest by far among all magnetars comma  rivaling those of rotation-powered pulsars openParRPPsclosePar. Hence Swift J1818.0-1607 may represent the ultimate link between the two populations. The source has not reached quiescence yet. Hence comma  we propose a late-time monitoring campaign to establish its long-term decay trend comma  reveal the late-time surface thermal pulse shape and pulsed fraction comma  and derive the radio-X-ray pulse offset and compare it to the early stages of the outburst comma  all crucial elements to place this unique source within the large family of magnetars and RPPs.
DOI: 10.57780/esa-z2qoxwl
title: 088295

description: Until recently comma  CCO pulsars comma  with weak dipole B-fields and small spin-down rates comma  were defined as stable rotators. Now comma  long-term timing of 1E 1207.4-5209 revealed unexpected timing glitches and-or strong timing noise comma  unprecedented for a pulsar with such small spin-down rates comma  and has profound implications for the B-field evolution of CCOs and their emission mechanismopenParsclosePar. It may support a timely conjecture that glitches could be triggered in CCOs by diffusion of a strong comma  buried internal field that rivals those found in magnetars. We now have evidence of similar timing behaviour from the CCO PSR J0821-4300 in Puppis A. We propose to monitor PSR J0821 4300 to resolve the nature of its timing anomaly comma  possible new evidence of magnetic field growth on a CCO.
DOI: 10.57780/esa-z67h4zr
title: 084044

description: Recent investigations of weak-line quasars openParWLQsclosePar have led us to propose a simple model where a thick inner accretion disk comma  associated with an extremely high Eddington ratio comma  is responsible for both their weak lines and remarkable X-ray properties. We propose to test this model with a long observation of the optically ultraluminous WLQ SDSS J1521+5202. Our Chandra data show this source has a strikingly hard X-ray spectrum suggesting heavy absorption. The proposed high-quality XMM-Newton spectrum will determine if we are seeing the model.s predicted Compton-reflection dominated continuum due to Compton-thick absorption by the inner disk. If confirmed comma  our model will help establish relationships between inner accretion-disk properties and the accretion rate in all quasars.
DOI: 10.57780/esa-zefbky5
title: 086243

description: Super spirals are the most massive spiral galaxies in the universe. They have very high rotation speeds and specific angular momenta that break from the Tully-Fisher and Fall scaling relations. We suspect that they are under-massive for their dark matter halos comma  with their baryonic mass limited by inefficient gas cooling and accretion. Alternatively comma  they may have been spun up by cold accretion flows or gas-rich major mergers. In order to definitively distinguish between these two possible super spiral formation scenarios comma  we propose to measure the luminosity and temperature of the hot gas halo of the fastest spinning super spiral 2MFGC 12344 using XMM-Newton.
DOI: 10.57780/esa-zgrl91c
title: 086297

description: Relics are diffuse radio sources thought to trace shocks at the periphery of merging clusters. LOFAR comma  with its unique resolution and sensitivity comma  is revolutionizing the field by opening a new window of discovery. The LOFAR survey recently discovered a rare example of double relics in a low-mass cluster comma  confirmed as a 3doublePoint1 merger by our Cy21 Chandra observations. The bright relics are located exceptionally far away from the cluster core -- at about R500 openPar1.3 MpcclosePar. The properties of the radio sources are hard to reconcile with current relic formation models comma  given the low cluster mass. We propose XMM-Newton observations to study the luminosity and temperature substructure comma  understand the cluster merger history and place tight constraints on relic formation models.
DOI: 10.57780/esa-zi2tt20
title: 087091

description: High luminosity quasars are unique laboratories to test our understanding of X-ray coronae in AGN. We propose joint XMM-Newton and NuSTAR observations of a luminous comma  optically-selected comma  non-jetted quasar at z=0.821.  Our main goal is to measure the high-energy cutoff in its X-ray spectrum comma  hence constraining comma  in the framework of Comptonization models comma  its coronal temperature and optical depth.  This will allow us to test whether the same physical conditions hold in quasars at luminosities and masses 100 times higher than those probed in so far in the nearby Universe comma  exploring the unknown X-ray properties of the quasar population at intermediate redshifts openParz = 0.1-1closePar comma  constituting half the age of the Universe.
DOI: 10.57780/esa-zlv2tjh
title: 089106

description: Ultraluminous X-ray sources openParULXsclosePar are X-ray binaries radiating above the Eddington luminosity. An increasing sample of ULXs are known to be powered by accreting pulsars openParPULXsclosePar comma  and it is currently unclear if their observed emission is amplified by strong radiation beaming or it denotes a genuine super-Eddington mass accretion rate. In the second case comma  the large mass transfer required is expected to produce detectable effects on the binary orbit comma  which were tentatively detected in past observations. In this program comma  we use pulsar timing to track the orbital evolution of the first discovered PULX comma  M82 X-2 comma  producing a strong constraint on the mass transfer and finally discriminate between the beaming and the extreme super-Eddington models.
DOI: 10.57780/esa-zobjvg7
title: 086080

description: The Magellanic Clouds openParMCsclosePar harbour a large sample of Be-X-ray binaries at a moderate and well known distance with low Galactic foreground absorption. However comma  their transient nature complicates observations in X-rays. During the eROSITA all-sky survey the MCs and the Magellanic Bridge openParMBclosePar between them will be scanned frequently. This provides the unique opportunity to detect high-mass X-ray binaries openParHMXBsclosePar during outburst in the full Magellanic System openParMSclosePar. We propose five triggered XMM-Newton observations of new or unexplored HMXBs in the MS. Our goal is to study their spectral and temporal properties comma  to continue the build-up of large statistical samples of these sources in both clouds and in particular in the MB comma  where Be-X-ray binaries have already been found.
DOI: 10.57780/esa-zrh1n38
title: 088190

description: We propose a first-look survey of twelve galaxy clusters that comma  based on optical selection criteria and archival X-ray data of similarly selected clusters comma  are very likely to be bimodal merging clusters capable of constraining dark matter properties. The candidates have  ge2sigma  RASS excesses but otherwise have not been studied with X-rays. By locating the X-ray peakopenParsclosePar well enough to determine if they have separated from the galaxies comma  the survey has the potential to discover new laboratories to probe the nature of dark matter.
DOI: 10.4121/719a906a-72fb-4a3a-a371-f50cb09e3b75
title: Data underlying the publication: Entanglement of Spin-Pair Qubits with Intrinsic Dephasing Times Exceeding a Minute

description: This dataset contains both the research data and analysis code for the figures in the publication "Entanglement of Spin-Pair Qubits with Intrinsic Dephasing Times Exceeding a Minute" in Physical Review X. For each figure containing experimental data, we provide the data points, error bars, and potentially underlying data, as well as the python code used to fit the data and obtain the fit parameters. The dataset is organised per figure where the naming of each figure corresponds to that in the publication in Physical Review X.
DOI: 10.4121/719a906a-72fb-4a3a-a371-f50cb09e3b75.v1
title: Data underlying the publication: Entanglement of Spin-Pair Qubits with Intrinsic Dephasing Times Exceeding a Minute

description: This dataset contains both the research data and analysis code for the figures in the publication "Entanglement of Spin-Pair Qubits with Intrinsic Dephasing Times Exceeding a Minute" in Physical Review X. For each figure containing experimental data, we provide the data points, error bars, and potentially underlying data, as well as the python code used to fit the data and obtain the fit parameters. The dataset is organised per figure where the naming of each figure corresponds to that in the publication in Physical Review X.
DOI: 10.5258/soton/d2578
title: Dataset in support of the Southampton doctoral thesis 'Predicting behavioural speech reception threshold using cortical responses to continuous sound'

description: The dataset includes EEG responses to continuous speech, modulated noise, and repeating /da/ stimuli under different background noise conditions (SIN_EEG and SIN_EEG_Da). The EEG files are raw data saved in Biosemi .bdf format. These files can be loaded into software such as MATLAB using the EEGLAB package or Python using the MNE package. The sounds used to generate EEG responses are in .wav format (SIN_Stimuli). These sounds consist of continuous speech, noise modulated by the speech envelope, and short /da/ syllable. SIN_SRT consists of percentage word correct scores from the Matrix test. These scores were used to estimate the participants' speech reception threshold. SIN_EEG_python_script contains examples of EEG data processing. SIN_Stimuli_Order contains information about the order of stimuli and SNR conditions presented to each participant. SIN_Participant_Information and SIN_Consent_Form are the participant information sheet and blank consent form.
DOI: 10.15156/bio/sh1275019.09fu
title: SH1275019.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15156/bio/sh1275020.09fu
title: SH1275020.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.15156/bio/sh1275021.09fu
title: SH1275021.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.