bluuebunny/crossref_metadata_2025_split huggingface dataset:
Long-term Study of the 2020 Magnetar-like Outburst of the Young Pulsar PSR J1846-0258 in Kes 75
Authors: Sathyaprakash R. , Rea N. , Coti Zelati F. , Borghese A. , Pilia M. , Trudu M. , Burgay M. , Turolla R. , Zane S. , Esposito P. , Mereghetti S. , Campana S. , Götz D. , Ibrahim A. Y. , Israel G. L. , Possenti A. , Tiengo A. 
Published: November 2024

Abstract
Magnetar-like activity has been observed in a large variety of neutron stars. PSR J1846−0258 is a young 327 ms radio-quiet pulsar with a large rotational power (∼8 × 1036 erg s−1), and resides at the center of the supernova remnant Kes 75. It is one of the rare examples of a high-magnetic-field pulsar showing characteristics both of magnetars and radio pulsars, and can thus provide important clues on the differences in the emission mechanisms between these two classes. In 2006, PSR J1846−0258 was detected to undergo an outburst for the first time, accompanied by a large flux increase, millisecond X-ray bursts, significant spectral changes, and a large timing glitch. In the period between 2020 May and June, after 14 yr of quiescent stable emission, the source underwent a second magnetar-like outburst, which was followed up with several observations by Neutron Star Interior Composition Explorer, XMM-Newton, NuSTAR, and Swift. In this work, we report on the long-term timing and X-ray spectral properties of the source following the 2020 outburst, and place upper limits on any source activity at radio wavelengths. We demonstrate that the pulsed flux increased by a factor >6 during the outburst, followed by nontrivial variability in the spin-down rate. Our timing analysis shows that the spin frequency and its derivative are clearly affected by magnetospheric activity due to the outburst. We find hints for an oscillation in the frequency derivative with a timescale of 50–60 days, recovering later on to stable quiescence.
Forecasting the Population of Globular Cluster Streams in Milky Way–type Galaxies
Authors: Pearson Sarah , Bonaca Ana , Chen Yingtian , Gnedin Oleg Y. 
Published: November 2024

Abstract
Thin stellar streams originating from globular clusters (GCs) are among the most sensitive tracers of low-mass dark matter subhalos. Joint analysis of the entire population of stellar streams will place the most robust constraints on the dark matter subhalo mass function, and therefore the nature of dark matter. Here we use a hierarchical model of GC formation to forecast the total number, masses, and radial distribution of dissolved GC in Milky Way–like galaxies. Furthermore, we generate mock stellar streams from these progenitors’ orbital histories taking into account the clusters’ formation and accretion times, mass, and metallicity. Out of ∼10,000 clusters more massive than 104
M
⊙, ∼9000 dissolved in the central bulge and are fully phase mixed at the present, while the remaining ∼1000 survive as coherent stellar streams. This suggests that the current census of ∼80 GC streams in the Milky Way is severely incomplete. Beyond 15 kpc from the Galactic center we are missing ∼100 streams, of which the vast majority are from accreted GCs. Deep Rubin photometry (g ≲ 27.5) would be able to detect these streams, even the most distant ones beyond >75 kpc. We also find that M31 will have an abundance of streams at galactocentric radii of 30–100 kpc. We conclude that future surveys will find a multitude of stellar streams from GCs, which can be used for dark matter subhalo searches.
Mind the Kinematics Simulation of Planet–Disk Interactions: Time Evolution and Numerical Resolution
Authors: Chen Kan , Dong Ruobing 
Published: November 2024

Abstract
Planet–disk interactions can produce kinematic signatures in protoplanetary disks. While recent observations have detected non-Keplerian gas motions in disks, their origins are still being debated. To explore this, we conduct 3D hydrodynamic simulations using the code FARGO3D to study nonaxisymmetric kinematic perturbations at two scale heights induced by Jovian planets in protoplanetary disks, followed by examinations of detectable signals in synthetic CO emission line observations at millimeter wavelengths. We advocate for using residual velocity or channel maps, generated by subtracting an azimuthally averaged background of the disk, to identify planet-induced kinematic perturbations. We investigate the effects of two basic simulation parameters, simulation duration and numerical resolution, on the simulation results. Our findings suggest that a short simulation (e.g., 100 orbits) is insufficient to establish a steady velocity pattern given our chosen viscosity (α = 10−3) and displays plenty of fluctuations on an orbital timescale. Such transient features could be detected in observations. By contrast, a long simulation (e.g., 1000 orbits) is required to reach steady state in kinematic structures. At 1000 orbits, the strongest detectable velocity structures are found in the spiral wakes close to the planet. Through numerical convergence tests, we find hydrodynamics results converge in spiral regions at a resolution of 14 cells per disk scale height or higher. Meanwhile, synthetic observations produced from hydrodynamic simulations at different resolutions are indistinguishable with 0.″1 angular resolution and 10 hr of integration time on Atacama Large Millimeter/submillimeter Array.
Origin and Full Characterization of the Secondary (Assembly) Halo Bias
Authors: Salvador-Solé Eduard , Manrique Alberto , Agulló Eduard 
Published: November 2024

Abstract
The clustering of dark matter halos depends not only on their mass, the so-called primary bias, but also on their internal properties, the so-called secondary bias. While the former effect is well understood within the Press–Schechter and excursion set models of structure formation, the latter is not. In those models, protohalos are fully characterized by their height and scale, which determine the halo mass and collapse time, so there is no room for any other halo property. This is why the secondary bias was believed not to be innate but due to the distinct merger rate of halos lying in different backgrounds, and dubbed assembly bias. However, it has now been determined that mergers leave no imprint in the inner halo properties. In fact, the innate origin of the secondary bias cannot be discarded because, in the more realistic peak model of structure formation, halo seeds are characterized by one additional property: the peak curvature. Here, we use the confluent system of peak trajectory formalism to show that peaks lying in different backgrounds have different mean curvatures, which in turn cause them to evolve into halos with different typical inner properties. The dependence we find of the properties on halo background (or halo clustering) reproduces the results of simulations.
New Results on the Onset of a Coronal Mass Ejection from 5303 Å Emission Line Observations with VELC/ADITYA-L1
Authors: Ramesh R. , Muthu Priyal V. , Singh Jagdev , Sasikumar Raja K. , Savarimuthu P. , Gavshinde Priya 
Published: November 2024

Abstract
We report on the onset of a coronal mass ejection (CME) using spectroscopic observations in the 5303 Å coronal emission line with the Visible Emission Line Coronagraph (VELC) onboard ADITYA-L1, the recently launched first Indian space solar mission. The CME was observed on 2024 July 16 in association with an X1.9 class soft X-ray flare from heliographic location S05W85. The VELC observations were near the west limb of the Sun during the CME. The results obtained helped to constrain the onset time of the CME. In addition, they indicate a ≈50% decrease in the coronal intensity near the source region of the CME due to mass depletion, a ≈15% enhancement in the emission line width, and a redshifted Doppler velocity of about ≈10 km s−1. The nonthermal velocity associated with the line broadening is ≈24.87 km s−1.
Bolometric Corrections for FU Ori Object Accretion Disk Luminosities
Authors: Carvalho Adolfo S. , Hillenbrand Lynne A. 
Published: November 2024

Abstract
The accretion luminosity of an FU Ori disk is a fundamental system parameter, but a challenging one to estimate for all but the most well-studied systems. FU Ori objects are dynamically evolving accretion disks, especially close in time to the outburst epoch. They have a complex multitemperature disk structure that results in distinctly shaped, broad spectral energy distributions (SEDs). Detailed spectroscopic analysis is required for simultaneous constraint on relevant physical parameters such as the central stellar mass, inner disk radius, disk inclination, and disk accretion rate. However, outbursting systems that are deeply embedded and/or distant may be limited to only photometric measurement and over only a narrow range of wavelengths. The bolometric corrections necessary to estimate accretion luminosities are not straightforward and in particular cannot be adopted from existing literature on isotropically radiating stars. We present bolometric corrections specific to astrophysical accretion disks for a variety of filters in ongoing and upcoming all-sky surveys.
Statistical Analysis of Near-surface Structure and Material Properties on Momentum Transfer in Rubble Pile Targets Impacted by Kinetic Impactors
Authors: DeCoster Mallory E. , Stickle Angela M. , Rainey Emma S. G. , Graninger Dawn M. 
Published: November 2024

Abstract
Rubble pile asteroids consist of reassembled fragments of once larger monolithic asteroid parent bodies. Recent spacecraft missions to asteroids like Itokawa, Ryugu, Bennu, and Dimorphos suggest that rubble pile asteroids are common in the asteroid population, and rubble piles could be a likely structure among potentially hazardous objects. Therefore, it is important to understand the response of rubble pile targets to kinetic impacts for potential future deflection needs. The recent Double Asteroid Redirection Test (DART) mission motivates an investigation of kinetic impacts into rubble pile targets to understand their effects on deflection. Here, we simulate kinetic impacts into Dimorphos-sized asteroid targets to understand the effect of the impact site structure on the deflection efficiency of relevant sizes for planetary defense. We perform 52 two-dimensional simulations where we vary the impact site structure of the impact site, the target porosity, and the material behavior/strength model to understand their relative effects on crater size and the momentum enhancement factor (β). We find that the effects of the impact site on both crater size and β are greatest for impacts into weaker targets, where impact sites rich in matrix material result in statistically larger craters and higher βs compared to impact sites rich in boulder material. Further, impact site structures that promote increased boulder ejection result in larger β values. These results provide important intuition to understand the DART impact and to extrapolate results to future potential missions.
Numerical Investigation of the Cohesive Strength Regime of the Bilobated Arrokoth after the Sky-crater-forming Impact Event
Authors: Kim Yaeji , Hirabayashi Masatoshi , Bauer James 
Published: November 2024

Abstract
In 2019, NASA’s New Horizons mission, using the Long Range Reconnaissance Imager, revealed Arrokoth’s bilobated shape and a large impact-crater-like region (“Sky”) on the small lobe, which is ∼7 km wide and ∼1 km deep. Given that this depression takes up ∼7% of the entire volume of the small lobe, Arrokoth’s neck, the most structurally sensitive area to failure, might have been subject to substantial structural modification if the Sky-crater-forming event occurred after the bilobate shape had formed. Using the π-scaling law, we quantified the linear momentum imparted to the small lobe by the Sky-crater-forming event, which was in the range of (2.4–4.0) × 1013 kg m s−1, depending on Arrokoth’s bulk density of 250–500 kg m−3 and impact speeds of 100 m s−1, 300 m s−1, and 1 km s−1. If the linear momentum was fully transferred to Arrokoth’s small lobe, it would have given the small lobe an impulse velocity of approximately 0.1 m s−1 relative to the large lobe. To assess the structural impact of this event, we used a finite-element modeling approach to simulate post-impact stress fields driven by the estimated impulse velocity on the small lobe and constrained the critical cohesive strength required to prevent structural failure. Based on the current parameter space, our results suggest that the Sky-crater-forming event could have required the critical cohesive strength of up to ∼20 kPa for Arrokoth’s neck to avoid structural failure, which is higher than the typical cohesive strength estimated for small bodies (usually less than 1 kPa for asteroids and comets).
Nuevos datos sobre la biología y distribución de Sibinia exigua Faust, 1885 (Coleoptera, Curculionidae, Curculioninae) en la península ibérica
Authors: Fernández-Carrillo Enrique , Fernández-Carrillo José Luis , Caldara Roberto 
Published: November 2024

Se aportan nuevos registros de Sibinia exigua para Castilla-La Mancha (España Central), con ejemplares procedentes tanto de enclaves con vegetación halófila en varias localidades de la provincia de Ciudad Real, como de la colección histórica De la Fuente. Así mismo se han consultado sus manuscritos inéditos. Se aportan nuevos datos biológicos, especialmente de las plantas nutricias sobre las que se ha capturado.
New data and threat status of two rare North African species of the subgenus Bolognaia (Coleoptera: Meloidae: Meloini: Eurymeloe)
Authors: Sánchez Vialas Alberto , Ruiz José Luis , Roujas Alain , François Alexandre 
Published: November 2024

This study updates the distribution and conservation status of two poorly documented blister beetle species in Morocco: Eurymeloe (Bolognaia) pallidicolor (Martínez de la Escalera, 1909) and E. (B.) saharensis (Chobaut, 1898). A new locality for E. pallidicolor is added, which represents the southernmost known occurrence for the species, along with a total of seven new localities for E. saharensis in both the southwest and southeast of Morocco, significantly expanding its known area of occupancy in the country. A preliminary assessment of the threat status for both species is conducted based on IUCN criteria. Additionally, the habitat characteristics of both species in Morocco are described. While E. saharensis faces no immediate threats, E. pallidicolor appears to be a stenotopic species confined to low-altitude coastal and subcoastal areas. Its extent of occurrence and area of occupancy are very limited, which would place E. pallidicolor in an unfavorable conservation status. However, due to the limited available information, it would qualify as “Data Deficient” species according to the IUCN criteria. These findings emphasize the crucial role of natural protected areas, such as Souss-Massa National Park, in supporting populations of species affected by habitat destruction in the region. Lastly, a brief comment on the internal taxonomy of the genus Eurymeloe is provided, and a new combination is established: Eurymeloe (Bolognaia) digiuliorum (Bologna, Riccieri & Spagoni, 2024) comb. nov.
The third record of Smicromyrmilla ariasi (André, 1896) (Hymenoptera: Mutillidae) in the Iberian Peninsula
Authors: Strauss Allegra Monet , Parejo-Pulido Daniel , Matias Rafael 
Published: November 2024

Mutillid wasps (Hymenoptera: Mutillidae) are among the least known species in the biodiverse Iberian Peninsula, in particular those in the primitive subfamily Ticoplinae. Smicromyrmilla ariasi (André, 1896) is hitherto known only from females, and within Iberia by only two specimens, including the holotype. One female mutillid wasp photographed in the foothills of southwestern Sierra Nevada (Granada, Spain) was later identified in a citizen science internet platform as S. ariasi, constituting the third record for the Iberian Peninsula.
La technique qiangjin 戧金 des objets laqués en Chine et en France au xviiie siècle
Authors: Li Linlong 
Published: November 2024

Les laques, en tant qu’objets d’étude, s’avèrent particulièrement pertinents pour explorer les diverses modalités qui régissent les échanges d’œuvres d’art et les techniques qui y sont associées. Cet article examine l’influence de la circulation des laques chinoises et de leurs techniques en France, en mettant l’accent sur ces artefacts décorés selon la technique qiangjin 戧金 entre la Chine et la France au xviiie siècle. Le texte est structuré en trois parties. La première partie vise à éclaircir la définition du terme « laque ». La deuxième analyse deux aspects : d’une part, les échanges commerciaux entre la Chine et la France, d’autre part, la technique spécifique du qiangjin. Enfin, la dernière partie est consacrée à la création, en France, d’objets d’art utilisant le vernis Martin et ornés de décors gravés.
« À l’occident de cette ligne, plus de confiance géographique »
Authors: Montety Felix de 
Published: November 2024

Une grande carte manuscrite de l’Asie centrale conservée à la Bibliothèque nationale de France témoigne des processus de transfert et de transformation des savoirs géographiques par lesquels a été modifiée, au début du xixe siècle, la cartographie européenne des vastes territoires situés entre le Tibet et la mer Caspienne. L’examen des particularités de son système de coordonnées et de sa nomenclature montre qu’elle fut construite en plusieurs étapes par le polygraphe prussien Heinrich-Julius Klaproth à Paris dans les années 1820-1830, à l’aide de cartes publiées en Chine au xviiie siècle. La carte foisonnante qui en résulte met notamment en évidence les structures orographiques et hydrographiques et la localisation des villes majeures d’une région du monde alors encore très mal connue des Européens, tout en révélant les limites de sa méthode. Malgré un travail d’ampleur étalé sur environ une décennie et ayant bénéficié du soutien continu d’Alexander von Humboldt, le projet cartographique de Klaproth n’est jamais parvenu à son terme, ou du moins à la vaste entreprise de synthèse des savoirs géographiques que cette carte manuscrite semblait esquisser.
Le passage de la voie sèche à la voie humide
Authors: Téreygeol Florian , Gauthier Joseph , Absi Pascale 
Published: November 2024

Grâce aux apports combinés des traités métallurgiques et de chimie et de l’anthropologie, il est possible d’appréhender la question du passage du procédé d’analyse par voie sèche à celui par voie humide. Cette évolution, que l’on doit aux travaux de Gay-Lussac, a été motivée par une recherche de précision dans le dosage de l’argent des ateliers monétaires enclenchée dès le xviiie siècle. L’usage de la voie humide n’a pas entrainé la disparition du procédé antérieur. À l’aide de deux exemples actuels pris dans des environnements éloignés, un contexte minier et un atelier urbain, nous montrons pourquoi une technique plongeant ses racines dans le monde médiéval et dont les défauts sont identifiés n’a pas été délaissée au profit d’une technique de dosage plus précise. Au-delà de la recherche de précision, le choix de l’une ou de l’autre méthode repose d’abord sur l’usage qui est fait du résultat analytique et de la sphère économique dans lequel il s’inscrit.
Par choix ou par défaut
Authors: Gauthier Joseph , Téreygeol Florian 
Published: November 2024

L’essai des minerais a joué plusieurs rôles dans l’économie de la production minière, notamment à partir de la fin de la période médiévale. C’est à cette époque qu’ont été développées des techniques d’analyse opérant sur quelques grammes de minerai dans un four à moufle. Représentatif et reproductible, cet essai par voie sèche était utile à la gestion des chantiers miniers, au commerce des minerais, à l’optimisation des procédés métallurgiques tout en permettant le contrôle de la production. Les modes opératoires de l’essai au four à moufle, perfectionnés au cours du xvie siècle notamment par Lazarus Ercker, ont été pratiqués sans grands changements jusqu’au xixe siècle et le sont encore de nos jours. Une concurrence avec d’autres techniques, développées pour la voie humide du xviie au xixe siècle et pour la spectrométrie de masse au xxe siècle, n’a jamais fait disparaître l’essai par voie sèche. Il a même été préféré à tout autre procédé jusqu’au milieu du xixe siècle.
L’étude des sols d’habitat et des grottes ornées dans l’œuvre d’André Leroi-Gourhan
Authors: Galicia Alfonso Ramírez 
Published: November 2024

Nous réalisons une comparaison des deux méthodes développées par André Leroi-Gourhan pour étudier les sols d’habitat et les grottes ornées paléolithiques, dans les années 1960-1970. Leur but était d’approcher l’espace-temps vécu des groupes préhistoriques, dans leurs habitats et dans leurs sanctuaires, pour construire des interprétations paléo-ethnologiques de leur vie matérielle et intellectuelle. Ce projet faisait partie des courants qui voulaient dépasser l’approche chrono-stylistique dominante, via un rapprochement de l’archéologie aux sciences humaines. Notre analyse montre que, même en contribuant à éviter l’anachronisme ethnographique, et à augmenter le détail et la rigueur analytique, ces méthodes ont fini par limiter l’étude des temporalités à deux extrêmes déshumanisés de la durée, en créant deux spécialités séparées. Après Leroi-Gourhan, des membres de son école et d’autres chercheurs ont exploré d’autres pistes pour accéder à la multiplicité de temporalités du registre archéologique via la mise en évidence de nouveaux patrons de structuration spatio-temporelle des vestiges (patchworks de micro-durées).
The New Era of mRNA Vaccines: The Success of the Covid-19 Vaccines and the Safety Concerns in Adolescents
Authors: Gopal Muthu , Rajan Anusiga S. , Vasudevan Kavita , Kumar Ashwani , Kuttiatt Vijesh S. 
Published: November 2024

Abstract
A remarkable scientific achievement during the Covid pandemic is the rapid development and deployment of the mRNA vaccines which played a crucial role in reducing the Covid-related morbidity and mortality. The first-time safe use of the mRNA vaccine platform in humans opened up a new era in vaccinology. In the near future, the mRNA vaccine platform is likely to be used for other diseases as well. Though the Covid mRNA vaccine has been found to be safe in children, a matter of concern is the rare adverse event myocarditis, which was mostly observed among male adolescents. In this setting, we briefly discuss mRNA vaccine-related myocarditis and suggest that the safety concerns need to be alleviated by larger studies with long-term follow-up. We also stress the need for the generation of safety data from children in lower- and middle-income countries as there is limited experience with mRNA vaccines in such settings. The underlying mechanisms need to be understood well as the mRNA vaccine platform holds enormous promise for the future development of vaccines for several diseases.
Prevalence and Profile of Tapentadol Use in Patients Visiting a Drug De-addiction Center in Kashmir
Authors: Mehvish Syed , Hajni Heena Afzal , Anjum Ajmal , Hussain Arshad , Rather Yasir Hassan , Rashid Haider 
Published: November 2024

Background:
Misuse of prescription opioids has been a hazard lately with tapentadol being a recent addition to the list. Tapentadol is a schedule H1 opioid (Drugs and Cosmetics Rules, India), approved for the management of moderate-to-severe acute and chronic pain.

Aims and Objectives:
We examined the prevalence of tapentadol use among patients attending the Drug De-addiction Center, Government Medical College, Srinagar, Kashmir, along with their sociodemographic and clinical profiles.

Materials and Methods:
It was a cross-sectional study. Patients who reported current tapentadol use were included in the study.

Results:
In a span of 4 months, a total of 104 patients using tapentadol were seen. Our study mostly consisted of young, unmarried males. More than half of our study participants had concurrent opioid dependence. In our study, no participant had ever injected tapentadol.

Conclusion:
Tapentadol is becoming infamous as a cheap and ready-to-available drug, replacing other opioids during their nonavailability. This should be a potentially alarming sign for drug control authorities. As such, its sale and supply should be well regulated.