bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Standard Siren Measurement of the Hubble Constant Using Gravitational-wave Events from the First Three LIGO/Virgo Observing Runs and the DESI Legacy Survey
Authors: Palmese A. , Bom C. R. , Mucesh S. , Hartley W. G. 
Published: January 2023

Abstract
We present a new constraint on the Hubble constant H
0 using a sample of well-localized gravitational-wave (GW) events detected during the first three LIGO/Virgo observing runs as dark standard sirens. In the case of dark standard sirens, a unique host galaxy is not identified, and the redshift information comes from the distribution of potential host galaxies. From the third LIGO/Virgo observing run detections, we add the asymmetric-mass binary black hole GW190412 and the high-confidence GW candidates S191204r, S200129m, and S200311bg to the sample of dark standard sirens analyzed in Palmese et al. Our sample contains the top 20% (based on localization) GW events and candidates to date with significant coverage by the Dark Energy Spectroscopic Instrument Legacy Survey. We combine the H
0 posterior for eight dark siren events, finding

H

0

=

79.8

−
12.8

+
19.1

km

s

−
1

Mpc

−
1

(68% highest density interval) for a prior in H
0 uniform between [20, 140] km s−1 Mpc−1. This result shows that a combination of eight well-localized dark sirens combined with an appropriate galaxy catalog is able to provide an H
0 constraint that is competitive (∼20% versus 18% precision) with a single bright standard siren analysis (i.e., assuming the electromagnetic counterpart) using GW170817. When combining the posterior with that from GW170817, we obtain

H

0

=

72.77

−
7.55

+
11.0

km

s

−
1

Mpc

−
1

. This result is broadly consistent with recent H
0 estimates from both the cosmic microwave background and supernovae.
A Component of the Smith High-velocity Cloud Now Crossing the Galactic Plane
Authors: Lockman Felix J. , Benjamin Robert A. , Pichette Nicolas , Thibodeau Christopher 
Published: January 2023

Abstract
We have identified a new structure in the Milky Way: a leading component of the Smith high-velocity cloud that is now crossing the Galactic plane near longitude 25°. Using new 21 cm H i data from the Green Bank Telescope (GBT), we measured the properties of several dozen clouds that are part of this structure. Their kinematics is consistent with that of the Smith Cloud with a V
LSR exceeding that permitted by circular rotation in their direction. Most of the clouds in the leading component show evidence that they are interacting with disk gas allowing the location of the interaction to be estimated. The leading component crosses the Galactic plane at a distance from the Sun of 9.5 kpc, about 4.5 kpc from the Galactic Center. Its H i mass may be as high as 106
M
⊙, comparable to the mass of the neutral component of the Smith Cloud, but only a fraction of this is contained in clouds that are resolved in the GBT data. Like the Smith Cloud, the leading component appears to be adding mass and angular momentum to the interstellar medium in the inner Galaxy. We suggest that the Smith Cloud is not an isolated object, but rather part of a structure that stretches more than 40° (∼7 kpc) across the sky, in two pieces separated by a gap of ∼1 kpc.
Reconstructing the Assembly of Massive Galaxies. II. Galaxies Develop Massive and Dense Stellar Cores as They Evolve and Head toward Quiescence at Cosmic Noon
Authors: Ji Zhiyuan , Giavalisco Mauro 
Published: January 2023

Abstract
We use the spectral energy distribution fitting code Prospector to reconstruct the nonparametric star formation history (SFH) of massive (

log

M

*

>
10.3

) star-forming galaxies (SFGs) and quiescent galaxies (QGs) at redshift z
obs ∼ 2 to investigate the joint evolution of star formation activity and structural properties. Compared to extended SFGs, compact SFGs are more likely to have experienced multiple star formation episodes, with the fractional mass formed during the older (≥1 Gyr) episode being larger, suggesting that high-redshift SFGs assembled their central regions earlier and then kept growing in central mass as they become more compact. The SFH of compact QGs does not significantly differ from the average for this category, and shows an early burst followed by a gradual decline of the star formation rate. The SFH of extended QGs, however, is similar to that of post-starburst galaxies, and their morphology is also frequently disturbed. Knowledge of the SFH also enables us to empirically reconstruct the structural evolution of individual galaxies. While the progenitor effect is clearly observed and accounted for in our analysis, it alone is insufficient to explain the observed structural evolution. We show that, as they evolve from star-forming phase to quiescence, galaxies grow massive dense stellar cores. Quenching begins at the center and then propagates outward to the rest of the structure. We discuss possible physical scenarios for the observed evolution and find that our empirical constraints are in good quantitative agreement with the model predictions from dissipative accretion of gas to the center followed by massive starbursts before final quiescence (wet compaction).
A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources
Authors: Bruzewski S. , Schinzel F. K. , Taylor G. B. 
Published: January 2023

Abstract
Approximately one-third of existing γ-ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths. These sources have been the subject of intense scrutiny and observational effort during the observatory’s mission lifetime, and here we present a method of leveraging existing radio catalogs to examine these sources without the need for specific dedicated observations, which can be costly and complex. Via the inclusion of many sensitive low-frequency catalogs we specifically target steep-spectrum sources such as pulsars. This work has found steep-spectrum radio sources contained inside 591 Fermi unassociated fields, with at least 21 of them being notable for having pulsar-like γ-ray properties as well. We also identify a number of other fields of interest based on various radio and γ-ray selections.
NOEMA Detection of Circumnuclear Molecular Gas in X-Ray Weak Dual Active Galactic Nuclei: No Evidence for Heavy Obscuration
Authors: Hou Meicun , Li Zhiyuan , Liu Xin , Li Zongnan , Li Ruancun , Wang Ran , Wang Jing , Ho Luis C. 
Published: January 2023

Abstract
Dual active galactic nuclei (AGNs), which are the manifestation of two actively accreting supermassive black holes (SMBHs) hosted by a pair of merging galaxies, are a unique laboratory for studying the physics of SMBH feeding and feedback during an indispensable stage of galaxy evolution. In this work, we present NOEMA CO(2–1) observations of seven kiloparsec-scale dual-AGN candidates drawn from a recent Chandra survey of low redshift, optically classified AGN pairs. These systems are selected because they show unexpectedly low 2–10 keV X-ray luminosities for their small physical separations signifying an intermediate-to-late stage of merger. Circumnuclear molecular gas traced by the CO(2–1) emission is significantly detected in six of the seven pairs and 10 of the 14 nuclei, with an estimated mass ranging between (0.2–21) × 109
M
⊙. The primary nuclei, i.e., the ones with the higher stellar velocity dispersion, tend to have a higher molecular gas mass than the secondary. Most CO-detected nuclei show a compact morphology, with a velocity field consistent with a kiloparsec-scale rotating structure. The inferred hydrogen column densities range between 5 × 1021–2 × 1023 cm−2, but mostly at a few times 1022 cm−2, in broad agreement with those derived from X-ray spectral analysis. Together with the relatively weak mid-infrared emission, the moderate column density argues against the prevalence of heavily obscured, intrinsically luminous AGNs in these seven systems, but favors a feedback scenario in which AGN activity triggered by a recent pericentric passage of the galaxy pair can expel circumnuclear gas and suppress further SMBH accretion.
MeV Gamma-Ray Source Contribution to the Inner Galactic Diffuse Emission
Authors: Tsuji Naomi , Inoue Yoshiyuki , Yoneda Hiroki , Mukherjee Reshmi , Odaka Hirokazu 
Published: January 2023

Abstract
The origin of the inner Galactic emission, measured by COMPTEL with a flux of ∼10−2 MeV cm−2 s−1 sr−1 in the 1–30 MeV energy range from the inner Galactic region, has remained unsettled since its discovery. In this paper, we elaborate on a model of individual MeV gamma-ray sources unresolved by COMPTEL. This is conducted for sources crossmatched between the Swift-BAT and Fermi-LAT catalogs by interpolating the energy spectra in the hard X-ray and GeV gamma-ray ranges, as well as unmatched sources between the two catalogs. We find that the source contribution to the COMPTEL emission would be at least ∼20%. Combined with the Galactic diffuse emission, which is not well constrained, the COMPTEL emission can be roughly reproduced in some cases.
CARMA-NRO Orion Survey: Unbiased Survey of Dense Cores and Core Mass Functions in Orion A
Authors: Takemura Hideaki , Nakamura Fumitaka , Arce Héctor G. , Schneider Nicola , Ossenkopf-Okada Volker , Kong Shuo , Ishii Shun , Dobashi Kazuhito , Shimoikura Tomomi , Sanhueza Patricio , Tsukagoshi Takashi , Padoan Paolo , Klessen Ralf S. , Goldsmith Paul. F. , Burkhart Blakesley , Lis Dariusz C. , Sánchez-Monge Álvaro , Shimajiri Yoshito , Kawabe Ryohei 
Published: January 2023

Abstract
The mass distribution of dense cores is a potential key to understanding the process of star formation. Applying dendrogram analysis to the CARMA-NRO Orion C18O (J = 1–0) data, we identify 2342 dense cores, about 22% of which have virial ratios smaller than 2 and can be classified as gravitationally bound cores. The derived core mass function (CMF) for bound starless cores that are not associate with protostars has a slope similar to Salpeter’s initial mass function (IMF) for the mass range above 1 M
⊙, with a peak at ∼0.1 M
⊙. We divide the cloud into four parts based on decl., OMC-1/2/3, OMC-4/5, L1641N/V380 Ori, and L1641C, and derive the CMFs in these regions. We find that starless cores with masses greater than 10 M
⊙ exist only in OMC-1/2/3, whereas the CMFs in OMC-4/5, L1641N, and L1641C are truncated at around 5–10 M
⊙. From the number ratio of bound starless cores and Class II objects in each subregion, the lifetime of bound starless cores is estimated to be 5–30 freefall times, consistent with previous studies for other regions. In addition, we discuss core growth by mass accretion from the surrounding cloud material to explain the coincidence of peak masses between IMFs and CMFs. The mass accretion rate required for doubling the core mass within a core lifetime is larger than that of Bondi–Hoyle accretion by a factor of order 2. This implies that more dynamical accretion processes are required to grow cores.
Pixel-to-pixel Translation of Solar Extreme-ultraviolet Images for DEMs by Fully Connected Networks
Authors: Park Eunsu , Lee Harim , Moon Yong-Jae , Lee Jin-Yi , Cho Il-Hyun , Lee Kyoung-Sun , Lim Daye , Jeong Hyun-Jin , Lee Jae-Ok 
Published: January 2023

Abstract
In this study, we suggest a pixel-to-pixel image translation method among similar types of filtergrams such as solar extreme-ultraviolet (EUV) images. For this, we consider a deep-learning model based on a fully connected network in which all pixels of solar EUV images are independent of one another. We use six-EUV-channel data from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO), of which three channels (17.1, 19.3, and 21.1 nm) are used as the input data and the remaining three channels (9.4, 13.1, and 33.5 nm) as the target data. We apply our model to representative solar structures (coronal loops inside of the solar disk and above the limb, coronal bright point, and coronal hole) in SDO/AIA data and then determine differential emission measures (DEMs). Our results from this study are as follows. First, our model generates three EUV channels (9.4, 13.1, and 33.5 nm) with average correlation coefficient values of 0.78, 0.89, and 0.85, respectively. Second, our model generates the solar EUV data with no boundary effects and clearer identification of small structures when compared to a convolutional neural network–based deep-learning model. Third, the estimated DEMs from AI-generated data by our model are consistent with those using only SDO/AIA channel data. Fourth, for a region in the coronal hole, the estimated DEMs from AI-generated data by our model are more consistent with those from the 50 frames stacked SDO/AIA data than those from the single-frame SDO/AIA data.
Highly Energetic Electrons Accelerated in Strong Solar Flares as a Preferred Driver of Sunquakes
Authors: Wu H. , Dai Y. , Ding M. D. 
Published: January 2023

Abstract
Sunquakes are enhanced seismic waves excited in some energetic solar flares. Up to now, their origin has still been controversial. In this Letter, we select and study 20 strong flares in Solar Cycle 24, whose impulse phase is fully captured by the Reuven Ramaty High Energy Solar Spectroscopic Imager. For 11 out of 12 sunquake-active flares in our sample, the hard X-ray emission shows a good temporal and spatial correlation with the white-light enhancement and the sunquake. Spectral analysis also reveals a harder photon spectrum that extends to several hundred keV, implying a considerable population of flare-accelerated nonthermal electrons at high energies. Quantitatively, the total energy of electrons above 300 keV in sunquake-active flares is systematically different from that in sunquake-quiet flares, while the difference is marginal for electrons above 50 keV. All these facts support highly energetic electrons as a preferred driver of the sunquakes. Such an electron-driven scenario can be reasonably accommodated in the framework of a recently proposed selection rule for sunquake generation. For the remaining one event, the sunquake epicenter is cospatial with a magnetic imprint, i.e., a permanent change of magnetic field on the photosphere. Quantitative calculation shows that the flare-induced downward Lorentz force can do enough work to power the sunquake, acting as a viable sunquake driver for this specific event.
Petite histoire de communistes à la radio-télévision
Authors: Streiff Gérard 
Published: January 2023

L’article retrace la place progressive et respective qu’ont pu prendre, en tant que communistes, des réalisateurs et des journalistes, au sein de la radio et de la télévision publique, des débuts de ces médias jusqu’à la fin du xx e siècle, dans les contextes successifs de différents pouvoirs politiques et de directions d’antennes.
L’Institut CGT d’histoire sociale : 40 ans d’existence
Authors: Garrel Gilbert , Chaurand David 
Published: January 2023

Plusieurs préoccupations entremêlées sont à l’origine de la création de l’Institut, née il y a 40 ans : le souci de préserver les archives et d’offrir à qui le souhaite la possibilité de les consulter, un lieu de recherche qui doit obéir aux règles de sérieux, d’approches scientifiques que requièrent les études sociales mais aussi un lieu où sont organisés des événements scientifiques avec la tenue de colloques, la publication d’ouvrages et l’édition régulière d’une revue.
Traumatisme et transmission trans-générationnelle des conflits ethniques
Authors: Reshetnikov Mikhail Mihailovich 
Published: January 2023

Dans cet article, les fondements méthodologiques et les approches contemporaines de l’analyse des relations interpersonnelles et interethniques sont examinés du point de vue de la psychologie compréhensive, de la psychanalyse, de l’idée de transmission transgénérationnelle et d’autres théories modernes. Les événements ukrainiens de 2013-2014 sont analysés, et les prédispositions historiques des attitudes anti-russes dans l’espace post-soviétique sont explorées. L’auteur décrit systématiquement l’histoire de la formation de la nation et de l’État ukrainiens depuis le XVII e siècle, lorsque l’Ukraine était sous le protectorat de la Pologne, et explique le rôle particulier de l’hetman d’Ukraine Bohdan Khmelnytsky dans le processus d’adhésion de l’Ukraine à la Russie, mais la nation ukrainienne est devenue une nation divisée. L’auteur décrit le pacte Molotov-Ribbentrop qui a fait de la nation ukrainienne (pour la deuxième fois de son histoire) une nation divisée, ainsi que l’activité des nationalistes ukrainiens pendant la Seconde Guerre mondiale et après sa fin en Ukraine occidentale. L’auteur décrit en détail le soulèvement du peuple ukrainien contre la corruption et les oligarques en 2013 et la transformation du foyer de la colère populaire vers la Russie. L’article accorde une attention particulière au fait que le peuple russe est devenu une nation divisée et a conduit aux relations tendues actuelles entre l’Ukraine et la Russie après l’effondrement de l’Union des républiques socialistes soviétiques (URSS). En conclusion, l’auteur propose un moyen de résoudre ce conflit ethnique.
Le transitionnel et la réflexivité dans la théorisation de René Roussillon : quelle trajectoire pour le jeu et la symbolisation ?
Authors: Boutinaud Jérôme 
Published: January 2023

Les apports théorico-cliniques de René Roussillon, issus d’un champ de recherche avant tout soutenu par la référence à la psychanalyse, demeurent à plusieurs égards fondamentaux pour penser la question du jeu et de ses avatars. À partir d’un appui solidement ancré sur les apports freudiens et winnicottiens, les propositions déployées par cet auteur invitent à renouveler la pensée sur ce sujet autour de plusieurs notions clés que nous nous proposerons ici de revisiter à partir de la lecture qu’il en effectue : nous évoquerons donc le transitionnel, la symbolisation et la réflexivité ainsi que les différents types de jeu paradigmatiques et le fameux médium malléable. Il s’agira aussi cependant de questionner la pertinence de l’utilisation de ces terminologies dans un domaine différent : celui de la clinique psychomotrice. Jusqu’à quel point ces mêmes apports peuvent-ils dès lors demeurer pertinents à manier en psychomotricité ? Les théories de René Roussillon seraient elles par ailleurs elles-aussi susceptibles de se laisser influencer et modeler par le regard que les psychomotriciens portent sur le jeu ainsi que sur leur manière toute personnelle de l’accompagner, notamment au niveau du corps et de l’acte ? Nous proposerons ici quelques pistes de réponses afin de déployer ces questionnements…
Aspects théorico-cliniques des médiations numériques présentes et à venir en psychomotricité
Authors: Bonnotte Laurent 
Published: January 2023

Depuis quelques années, il devient courant de voir les milieux des sciences humaines, des neurosciences et des nouvelles technologies converger vers des recherches communes. Cela implique souvent la création d’un nombre de plus en plus étendu d’interfaces et de logiciels qui mettent en jeu le corps ou encore deviennent de véritables simulateurs de comportements humains. Tout en nous intéressant aux raisons possibles d’un tel engouement, à partir des théories existantes et d’exemples pratiques dans les disciplines impliquées, nous pouvons donner un aperçu de l’importance des notions telles que la sensorimotricité, le schéma-corporel, le dialogue tonique ou encore l’intégration spatio-temporelle dans le développement et l’utilisation de l’outil-numérique. A la question : « Peut-on agir de manière thérapeutique et/ou rééducative sur des troubles psychomoteurs au moyen du numérique ? », le fait de constater qu’il existe déjà des programmes dans le domaine de la clinique psychomotrice ne peut y répondre de manière satisfaisante. Il ne s’agît pas ici de remettre en cause l’efficacité de tels programmes qui, sous forme ludique ou non, se sont avérés utiles pour des patients. Il s’agît plutôt de porter un regard sur les relations existantes entre l’outil, le patient et le thérapeute, mais aussi de nous projeter virtuellement dans celles que nous pouvons aussi envisager de créer.
Virtual Site Visits: Student Perception and Preferences Towards Technology Enabled Experiential Learning
Authors: LeBrasseur Richard 
Published: January 2023

Site visits are a key pedagogical tool within natural science and geographical education. Site visits provide an interactive experience to enable learning through the exposure to a real-world spatio-temporal environment. COVID-19 restrictions required the development of a virtual site visit for a landscape ecology course in North America. In this study, a series of digital tools were coordinated to deliver site visit information focusing on multi-sensory, multi-scalar, and multi-media information based on Kolb’s experiential learning model, particularly Step 1, the concrete experience. This research explored student’s perceptions and opinions of the digital tools provided to complete their ecological restoration management assignment and their effectiveness and usability. 4th year natural resource and environmental science students (n=52) reported predominately positive attitudes towards the use of the virtual site visit. Though students did not prefer the virtual site visit over a physical site visit, they noted that the virtual site visit digital tools did provide the same information as a site visit and that they felt they were able to understand all aspects of the physical site through the virtual site visit tools provided, particularly through the digital photographs and the 360-degree virtual reality imagery. Successful student assignments illustrated experiential learning outcomes were met.
Effects of ATDE Teaching Mode during Online Teaching on Creative Thinking Ability of Learners
Authors: Lv Xinwei , Wu Yamin , Cui Xiuli 
Published: January 2023

Abstract: Online teaching based on computer and network technology has become a vital teaching mode under the current situation of the overwhelming COVID-19 epidemic. Teachers and students who fully understand and master basic knowledge and skills of various information technologies in online learning can stimulate students’ interest in learning information technology and train their ability in information collection, processing, and use. Given the lack of face-to-face communication and deep emotional exchange, online teaching has poor performance in improving the creative thinking ability of learners. During online teaching, teachers train the innovation consciousness quality of students in online courses successfully and improve the creative thinking ability of learners by using “asking,” “thinking,” “doing,” and “evaluation,” that is, the ATDE teaching mode. In this study, a teaching experiment was carried out on 41 undergraduates admitted in 2018 who majored in civil engineering at Zhengzhou University of Industrial Technology, Henan Province, China. Students were divided into the experimental group and the control group. The experimental group adopted the ATDE teaching mode for the course Design of concrete structure, while the control group applied the traditional teaching mode. A questionnaire survey of students’ creative thinking ability was conducted for both groups. Results showed that university students’ creative, emotional attitude under the ATDE teaching mode was far higher than that under the traditional (F=6.490, p=0.015). The creative thinking performance of university students under the ATDE teaching mode was higher than that under the traditional teaching mode (F=7.468, p=0.009). The Pearson correlation coefficient between creative, emotional attitude and creative thinking performance was 0.985 in the late test stage, which was higher than in the early test stage (0.480), which reveals that the ATDE teaching mode was conducive to improving abstract course learning effect of students majoring in civil engineering. Research conclusions can provide some references to investigate the feasibility of ATDE teaching mode in universities and offer a new choice and feasible path to train students’ creative thinking ability.