bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-dimensional Eclipse Mapping of the Hot-Jupiter WASP-43b with JWST MIRI/LRS
Authors: Hammond Mark , Bell Taylor J. , Challener Ryan C. , Lewis Neil T. , Weiner Mansfield Megan , Malsky Isaac , Rauscher Emily , Bean Jacob L. , Carone Ludmila , Mendonça João M. , Teinturier Lucas , Tan Xianyu , Crouzet Nicolas , Kreidberg Laura , Morello Giuseppe , Parmentier Vivien , Blecic Jasmina , Désert Jean-Michel , Helling Christiane , Lagage Pierre-Olivier , Molaverdikhani Karan , Nixon Matthew C. , Rackham Benjamin V. , Yang Jingxuan 
Published: June 2024

Abstract
We present eclipse maps of the two-dimensional thermal emission from the dayside of the hot-Jupiter WASP-43b, derived from an observation of a phase curve with the JWST MIRI/LRS instrument. The observed eclipse shapes deviate significantly from those expected for a planet emitting uniformly over its surface. We fit a map to this deviation, constructed from spherical harmonics up to order

ℓ

max

=
2

, alongside the planetary, orbital, stellar, and systematic parameters. This yields a map with a meridionally averaged eastward hot-spot shift of (7.75 ± 0.36)°, with no significant degeneracy between the map and the additional parameters. We show the latitudinal and longitudinal contributions of the dayside emission structure to the eclipse shape, finding a latitudinal signal of ∼200 ppm and a longitudinal signal of ∼250 ppm. To investigate the sensitivity of the map to the method, we fix the parameters not used for mapping and derive an “eigenmap” fitted with an optimized number of orthogonal phase curves, which yields a similar map to the

ℓ

max

=
2

map. We also fit a map up to

ℓ

max

=
3

, which shows a smaller hot-spot shift, with a larger uncertainty. These maps are similar to those produced by atmospheric simulations. We conclude that there is a significant mapping signal which constrains the spherical harmonic components of our model up to

ℓ

max

=
2

. Alternative mapping models may derive different structures with smaller-scale features; we suggest that further observations of WASP-43b and other planets will drive the development of more robust methods and more accurate maps.
An Image Quality Evaluation and Masking Algorithm Based On Pretrained
Deep Neural Networks
Authors: Jia Peng , Song Yu , Lv Jiameng , Ning Runyu 
Published: June 2024

Abstract
With the growing amount of astronomical data, there is an increasing need for
automated data processing pipelines, which can extract scientific information
from observation data without human interventions. A critical aspect of these
pipelines is the image quality evaluation and masking algorithm, which evaluate
image qualities based on various factors such as cloud coverage, sky brightness,
scattering light from the optical system, point-spread-function size and shape,
and read-out noise. Occasionally, the algorithm requires masking of areas
severely affected by noise. However, the algorithm often necessitates
significant human interventions, reducing data processing efficiency. In this
study, we present a deep-learning-based image quality evaluation algorithm that
uses an autoencoder to learn features of high quality astronomical images. The
trained autoencoder enables automatic evaluation of image quality and masking of
noise affected areas. We have evaluated the performance of our algorithm using
two test cases: images with point spread functions of varying full width half
magnitude, and images with complex backgrounds. In the first scenario, our
algorithm could effectively identify variations of the point spread functions,
which can provide valuable reference information for photometry. In the second
scenario, our method could successfully mask regions affected by complex
regions, which could significantly increase the photometry accuracy. Our
algorithm can be employed to automatically evaluate image quality obtained by
different sky surveying projects, further increasing the speed and robustness of
data processing pipelines.
Zooming by in the CARPoolGP Lane: New CAMELS-TNG Simulations of Zoomed-in Massive Halos
Authors: Lee Max E. , Genel Shy , Wandelt Benjamin D. , Zhang Benjamin , Delgado Ana Maria , Pandey Shivam , Lau Erwin T. , Carr Christopher , Cook Harrison , Nagai Daisuke , Angles-Alcazar Daniel , Villaescusa-Navarro Francisco , Bryan Greg L. 
Published: June 2024

Abstract
Galaxy formation models within cosmological hydrodynamical simulations contain numerous parameters with nontrivial influences over the resulting properties of simulated cosmic structures and galaxy populations. It is computationally challenging to sample these high dimensional parameter spaces with simulations, in particular for halos in the high-mass end of the mass function. In this work, we develop a novel sampling and reduced variance regression method, CARPoolGP, which leverages built-in correlations between samples in different locations of high dimensional parameter spaces to provide an efficient way to explore parameter space and generate low-variance emulations of summary statistics. We use this method to extend the Cosmology and Astrophysics with machinE Learning Simulations to include a set of 768 zoom-in simulations of halos in the mass range of 1013–1014.5
M
⊙
h
−1 that span a 28-dimensional parameter space in the IllustrisTNG model. With these simulations and the CARPoolGP emulation method, we explore parameter trends in the Compton Y–M, black hole mass–halo mass, and metallicity–mass relations, as well as thermodynamic profiles and quenched fractions of satellite galaxies. We use these emulations to provide a physical picture of the complex interplay between supernova and active galactic nuclei feedback. We then use emulations of the Y–M relation of massive halos to perform Fisher forecasts on astrophysical parameters for future Sunyaev–Zeldovich observations and find a significant improvement in forecasted constraints. We publicly release both the simulation suite and CARPoolGP software package.
An ALMA Search for Substructure and Fragmentation in Starless Cores in Orion B North
Authors: Fielder Samuel D. , Kirk Helen , Dunham Michael M. , Offner Stella S. R. 
Published: June 2024

Abstract
We present Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 3 observations of 73 starless and protostellar cores in the Orion B North molecular cloud. We detect a total of 34 continuum sources at 106 GHz, and after comparisons with other data, four of these sources appear to be starless. Three of the four sources are located near groupings of protostellar sources, while one source is an isolated detection. We use synthetic observations of a simulation modeling a collapsing turbulent, magnetized core to compute the expected number of starless cores that should be detectable with our ALMA observations and find at least two (1.52) starless cores should be detectable (at 5σ), consistent with our data. We run a simple virial analysis of the cores to put the Orion B North observations into context with similar previous ALMA surveys of cores in Chamaeleon I and Ophiuchus. We conclude that the Chamaeleon I starless core population is characteristically less bounded than the other two populations, along with external pressure contributions dominating the binding energy of the cores. These differences may explain why the Chamaeleon I cores do not follow turbulent model predictions, while the Ophiuchus and Orion B North cores are consistent with the model.
A Spatially Resolved [C ii] Survey of 31 z ∼ 7 Massive Galaxies Hosting Luminous Quasars
Authors: Wang Feige , Yang Jinyi , Fan Xiaohui , Venemans Bram , Decarli Roberto , Bañados Eduardo , Walter Fabian , Barth Aaron J. , Bian Fuyan , Davies Frederick B. , Eilers Anna-Christina , Farina Emanuele Paolo , Hennawi Joseph F. , Li Jiang-Tao , Mazzucchelli Chiara , Wang Ran , Wu Xue-Bing , Yue Minghao 
Published: June 2024

Abstract
The [C ii] 158 μm emission line and the underlying far-infrared (FIR) dust continuum are important tracers for studying star formation and kinematic properties of early galaxies. We present a survey of the [C ii] emission lines and FIR continua of 31 luminous quasars at z > 6.5 using the Atacama Large Millimeter Array (ALMA) and the NOrthern Extended Millimeter Array at sub-arcsec resolution. This survey more than doubles the number of quasars with [C ii] and FIR observations at these redshifts and enables statistical studies of quasar host galaxies deep into the epoch of reionization. We detect [C ii] emission in 27 quasar hosts with a luminosity range of L
[C II] = (0.3–5.5) × 109
L
⊙ and detect the FIR continuum of 28 quasar hosts with a luminosity range of L
FIR = (0.5–13.0) × 1012
L
⊙. Both L
[C II] and L
FIR are correlated (ρ ≃ 0.4) with the quasar bolometric luminosity, albeit with substantial scatter. The quasar hosts detected by ALMA are clearly resolved with a median diameter of ∼5 kpc. About 40% of the quasar host galaxies show a velocity gradient in [C ii] emission, while the rest show either dispersion-dominated or disturbed kinematics. Basic estimates of the dynamical masses of the rotation-dominated host galaxies yield M
dyn = (0.1–7.5) × 1011
M
⊙. Considering our findings alongside those of literature studies, we found that the ratio between M
BH and M
dyn is about 10 times higher than that of local M
BH–M
dyn relation on average but with substantial scatter (the ratio difference ranging from ∼0.6 to 60) and large uncertainties.
Observations of Nonthermal Velocities and Comparisons with an Alfvén Wave Turbulence Model in Solar Active Regions
Authors: Asgari-Targhi M. , Brooks D. H. , Hahn M. , Imada S. , Tajfirouze E. , Savin D. W. 
Published: June 2024

Abstract
We present a study of spectral line width measurements from the Extreme-ultraviolet Imaging Spectrometer on Hinode. We used spectral line profiles of Fe xvi 262.984 Å, Fe xiv 264.787 Å, Fe xiv 270.519 Å, Fe xiv 274.203 Å, and Fe xv 284.160 Å, and studied 11 active regions. Previous studies of spectral line widths have shown that in hot loops in the cores of active regions, the observed nonthermal velocities are smaller than predicted from models of reconnection jets in the corona or shock heating associated with Alfvén waves. The observed line widths are also inconsistent with models of chromospheric evaporation due to coronal nanoflares. We show that recent advances in higher resolution Alfvén wave turbulence modeling enables us to obtain nonthermal velocities similar to those measured in active regions. The observed nonthermal velocities for the 11 active regions in our study are in the range of 17–30 km s−1, consistent with the spectral line nonthermal widths predicted from our model of 16 interacting flux tubes, which are in the range of 15–37 km s−1.
Stochastic Averaging of Radiative Transfer Coefficients for Relativistic Electrons
Authors: Mościbrodzka Monika , Gammie Charles F. 
Published: June 2024

Abstract
Synchrotron emissivities, absorptivities, and Faraday rotation and conversion coefficients are needed in modeling a variety of astrophysical sources, including Event Horizon Telescope (EHT) sources. We develop a method for estimating transfer coefficients that exploits their linear dependence on the electron distribution function, decomposing the distribution function into a sum of parts each of whose emissivity can be calculated easily. We refer to this procedure as stochastic averaging and apply it in two contexts. First, we use it to estimate the emissivity of an isotropic κ distribution function with a high-energy cutoff. The resulting coefficients can be evaluated efficiently enough to be used directly in ray-tracing calculations, and we provide an example calculation. Second, we use stochastic averaging to assess the effect of subgrid turbulence on the volume-averaged emissivity and along the way provide a prescription for a turbulent emissivity. We find that for parameters appropriate to EHT sources turbulence reduces the emissivity slightly. In the infrared, turbulence can dramatically increase the emissivity.
A Multipeak Solar Flare with a High Turnover Frequency of the Gyrosynchrotron Spectra from the Loop-top Source
Authors: Wu Zhao , Kuznetsov Alexey , Anfinogentov Sergey , Melnikov Victor , Sych Robert , Wang Bing , Zheng Ruisheng , Kong Xiangliang , Tan Baolin , Ning Zongjun , Chen Yao 
Published: June 2024

Abstract
The origin of multiple peaks in light curves of various wavelengths remains illusive during flares. Here we discuss the flare of SOL2023-05-09T03:54M6.5 with six flux peaks as recorded by a tandem of new microwave and hard X-ray (HXR) instruments. According to its microwave spectra, the flare represents a high-turnover-frequency (>15 GHz) event. The rather-complete microwave and HXR spectral coverage provides a rare opportunity to uncover the origin of such an event together with simultaneous EUV images. We concluded that (1) the microwave sources originates around the top section of the flaring loops with a trend of source spatial dispersion with frequency; (2) the visible movement of the microwave source from peak to peak originates from the process of new flaring loops appearing sequentially along the magnetic neutral line; (3) the optically thin microwave spectra are hard with the indices (α
tn) varying from ∼−1.2 to −0.4, and the turnover frequency always exceeds 15 GHz; (4) higher turnover/peak frequency corresponds to stronger peak intensity and harder optically thin spectra. Using the Fokker–Planck and GX Simulator codes we obtained a good fit to the observed microwave spectra and spatial distribution of the sources at all peaks, if assuming the radiating energetic electrons have the same spatial distribution and single-power-law spectra but with the number density varying in a range of ∼30%. We conclude that the particle acceleration in this flare happens in a compact region nearing the loop-top. These results provide new constraints on the acceleration of energetic electrons and the underlying flare intermittent reconnection process.
No Significant Redshift Evolution in the Intrinsic Scatter of the M
•–M
⋆ Relation for Overmassive Black Holes
Authors: Guia Carl Audric , Pacucci Fabio 
Published: June 2024

Abstract
In the local Universe, the ratio between the mass of a central black hole and the stellar mass of its host galaxy is ∼0.1%. Recently, JWST discovered numerous galaxies at z > 4 that seem to deviate from the local relation, with black holes overmassive by 10–100 times. Similar galaxies were also discovered at cosmic noon. The intrinsic scatter in the relation describes how much the evolutionary histories of the single galaxies deviate from the mean evolutionary pattern of their parent data set. This Research Note examines whether a cosmic evolution of the intrinsic scatter can be detected by assessing its value for data sets in various redshift ranges. Using data from the local Universe (z < 0.055), low (0.4 ≤ z ≤ 0.9), intermediate (0.9 ≤ z ≤ 4), and high (z > 4) redshift, we conclude that there is no statistically significant redshift evolution of the intrinsic scatter.
A new spider species of Belisana Thorell, 1898 (Araneae, Pholcidae) from Guizhou Province, south-western China
Authors: Wang Bing , Yao Zhiyuan , Zhang Xiaoqing 
Published: June 2024

China exhibits remarkable diversity of the spider genus Belisana Thorell, 1898, with 62 species recorded to date. However, the largest number of Belisana species was found in Yunnan Province (23 ssp.), while only seven species were found in Guizhou Province.
In this paper, Belisana wangchengi sp. nov. as a new species is described from Guizhou Province, China.
Au Royaume-Uni, des étrangers sous surveillance GPS
Authors: Audibert Lucie 
Published: June 2024

Géolocalisés toutes les 30 secondes, sommés de scanner leurs empreintes jusqu’à cinq fois par jour, de plus en plus d’étrangers sont soumis aux dispositifs de surveillance électronique et acculés à vivre en état d’hypervigilance sur le sol britannique. Présentée comme une alternative au placement en centre de rétention administrative, cette politique détourne la finalité assignée à ces technologies et contourne résolument la loi. Les autorités s’arrogent la liberté de consulter les données collectées pour examiner les demandes de séjour et confient à un algorithme opaque le soin de juger de l’opportunité de maintenir les personnes sous surveillance.
Les nouvelles technologies frontalières
Authors: Molnar Petra , Saint-Saëns Isabelle 
Published: June 2024

Les espaces frontaliers comme ceux de l’urgence humanitaire, où la réglementation est délibérément limitée, constituent des terrains d’essai privilégiés pour le déploiement des nouvelles technologies de la surveillance. À l’échelle mondiale, fichiers numériques, chiens-robots, détecteurs de mensonges, reconnaissance faciale, etc., viennent étoffer l’arsenal sécuritaire des États pour automatiser le contrôle des frontières. Mais qu’en est-il de la préservation des droits fondamentaux des personnes visées par ces dispositifs ? Malgré l’usage croissant des systèmes d’intelligence artificielle, la réglementation internationale reste, semble-t-il, bien silencieuse.
Les libertés numériques, une défense par le droit héritière du Gisti ?
Authors: Le Lay Guillaume 
Published: June 2024

La Quadrature du Net est, depuis sa création en 2008, un acteur majeur de la défense des libertés fondamentales dans l’environnement numérique en France. L’observation de ses usages politiques du droit révèle certaines continuités avec les modalités d’action du Gisti, de l’expertise juridique comme ferment d’une légitimité politique au lien étroit entre les combats portés sur le terrain du droit et les combats politiques. Qu’il s’agisse de défendre les étrangers ou les libertés numériques, le droit est envisagé comme une arme, un instrument du changement social et politique.
Militantes communistes de l’Union des femmes françaises (1945-1979) : les contradictions d’une autonomie contrainte
Authors: Hayes Ingrid 
Published: June 2024

À la fin de la Seconde Guerre mondiale, le Parti communiste français (PCF) crée l’Union des femmes françaises (UFF), organisation non mixte qui s’adresse à des femmes non communistes se situant hors du monde professionnel. Il s’agit de construire l’hégémonie du PCF au sein de la société et dans le champ électoral, à l’heure où le suffrage devient universel et où la concurrence fait rage pour conquérir le nouvel électorat constitué par les femmes. L’article analyse les difficultés et contradictions auxquelles les militantes communistes actives dans l’UFF se sont confrontées pour trouver leur place dans cette nouvelle organisation qu’elles contribuaient à construire et à encadrer, de sa fondation jusqu’à la fin des années 1970. De 1945 à 1960, une identité de l’UFF est progressivement créée sous l’impulsion du PCF mais à distance de l’ habitus militant des femmes communistes. Durant les années 1960, l’organisation est déstabilisée par les bouleversements sociaux en cours, qui conduisent à une plus grande distance entre les militantes communistes et les autres dans le cadre d’une identité maintenue. De 1968 à la fin des années 1970, la conscience des difficultés croissantes de l’UFF conduit les dirigeantes nationales à tenter de sauver une organisation de plus en plus décalée, dans un rapport paradoxal au PCF.
Le genre contre la race ? L’Union des jeunes filles de Tunisie, une organisation non-mixte en Tunisie coloniale (1945-1956)
Authors: Abassade Élise 
Published: June 2024

À l’automne 1945, près de dix ans après sa naissance, l’Union des jeunes filles de Tunisie est refondée par de jeunes communistes soudées par leur expérience durant la guerre. Leurs objectifs profonds résident dans l’atténuation des inégalités que subissent les femmes, et dans la lutte anti-coloniale. Françaises, Tunisiennes, « israélites », « musulmanes », selon le vocabulaire colonial, y militent ensemble. Ainsi, de jeunes filles différemment assignées se croisent et interagissent malgré les pesanteurs d’une société très cloisonnée entre des catégories que le pouvoir considère comme relevant de la race, et entre hommes et femmes. L’UJFT se veut en effet être un espace de rencontre, d’éducation et d’action commune en dépit de ces différences, mais également en dépit des différentes classes sociales. Cet article examine alors en quoi ce souhait d’inclusion et de dépassement des barrières de race et de classe est permis par la non-mixité de genre, et explore les effets de celle-ci. Ce faisant, il analyse les facettes de la féminité juvénile défendue et diffusée par l’UJFT.
Les fins à la Renaissance, fin de la Renaissance : les discours du télos au xvi e siècle en France
Authors: Le Gall Jean-Marie 
Published: June 2024

La Renaissance a paradoxalement proclamé la fin de bien des choses car il faut finir pour renaître. Elle a donc congédié une époque, qu’elle baptise le Moyen Age, proclamé la fin de de la barbarie gothique et du papisme. Elle a aussi largement vécu dans l’attente de la fin du monde, de la parousie et de l’Apocalypse, et cette angoisse en forme d’espérance a progressé en France pendant les guerres de Religion, qui mettent fin au beau XVI e siècle et voit la vertu et la piété de noblesse décliner avec les mœurs de la société Mais la Renaissance, lever de rideau de la modernité, pouvait elle finir ? Cet article s’interroge sur la manière dont certains, comme Jean Bodin, Louis Le Roy, Montaigne, Pelletier du Mans ont proposé des issues pour ne pas finir. D’une part la croyance dans le progrès qui fait regarder l’avenir avec confiance plutôt que de se complaire dans le déclin du présent par rapport au passé. D’autre part, dans l’atmosphère vespérale et apocalyptique d’une fin de siècle tragique, la fascination pour une nature puissante, certes changeante mais sans fin, sur laquelle il est possible de refonder la société, sur une religion naturelle, une nation, une noblesse qui cultive l’idéal virgilien de la vie champêtre plutôt que l’esprit courtisan et querelleur.
« Par la fente de l’huis » : les traducteurs catholiques et protestants du Cantique des cantiques face à l’ambiguïté érotique du Ct 5,4
Authors: Placial Claire 
Published: June 2024

Le Cantique du cantique suscite l’intérêt des commentateurs et des exégètes notamment à cause de sa teneur érotique. Un des versets les plus intéressants à cet égard est le verset 5,4, qui donne, dans la traduction d’Olivétan, ceci : « Mon amy a advance sa main par le pertuys/ & mes entrailles se sont esmeues en moy. » Le xvi e siècle, qui voit fleurir les traductions tant catholiques, depuis la Vulgate, que protestantes, depuis l’hébreu, traduit ce verset uniformément en utilisant le terme de « pertuis » pour désigner l’orifice que pénètre la main du bien-aimé, ce qui est d’autant plus intéressant que par la suite, ce terme disparaît des traductions du Ct (Port Royal en 1700 : « le trou de la porte »). Cet article se propose de mettre en tension les choix terminologiques des traducteurs avec, d’une part, les paraphrases mystiques du texte, et, d’autre part, l’usage métaphorique du mot « pertuis » dans la poésie érotique de l’époque. J’en conclus que les traducteurs bibliques du xvi e siècle, au contraire de leurs homologues des siècles suivant, optent pour un terme, le « pertuis », qui n’interdit pas, voire qui autorise et encourage les lectures érotiques.