output
19972026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2025 · astro-ph.GAShow all

48 papers · 2 filters

astro-ph.GA2025

SiO emission in the filamentary Infrared Dark Cloud G035.39-00.33: An ALMA view

Rong Liu, Izaskun Jiménez-Serra, Giuliana Cosentino +8

Filamentary infrared dark clouds (IRDCs) are believed to represent the initial conditions for massive star and cluster formation. We investigate the IRDC G035.39-00.33 using SiO, H…

astro-ph.GA2025★ 1 cited

Dark matter in ALFALFA galaxies: Investigating galaxy-halo connection

Meng Yang, Ling Zhu, Niankun Yu +4

This paper aims to investigate the galaxy-halo connection using a large sample of individual galaxies with integrated spectra. We determine their dark matter conten…

astro-ph.GA2025★ 2 cited

Stellar masses and mass ratios for Gaia open cluster members

Sagar Malhotra, Alfred Castro-Ginard, Friedrich Anders +7

Context: Unresolved binaries in star clusters can bias stellar and cluster mass estimates, making their proper treatment essential for studying cluster dynamics and evolution. Aims…

astro-ph.GA2025

Building a Radio AGN Sample from Cosmic Morning -- The Radio High-Redshift Quasar Catalog (RHzQCat): I. Catalog from SDSS Quasars and Radio Surveys at

Yingkang Zhang, Ruqiu Lin, Krisztina Perger +5

Radio-loud high-redshift quasars (RHRQs) provide crucial insights into the evolution of relativistic jets and their connection to the growth of supermassive black holes. Beyond the…

astro-ph.GA2025★ 6 cited

ALMAGAL VI. The spatial distribution of dense cores during the evolution of cluster-forming massive clump

E. Schisano, S. Molinari, A. Coletta +51

High-mass stars and star clusters form from the fragmentation of massive dense clumps driven by gravity, turbulence, and magnetic fields. The ALMAGAL project observed cl…

astro-ph.GA2025★ 5 cited

ALMAGAL V. Relations between the core populations and the parent clump physical properties

D. Elia, A. Coletta, S. Molinari +54

Context. The fragmentation of massive molecular clumps into smaller, potentially star-forming cores plays a key role in the processes of high-mass star formation. The ALMAGAL proje…

astro-ph.GA2025★ 1 cited

Solving the cooling flow problem with combined jet-wind AGN feedback

Aoyun He, Feng Yuan, Suoqing Ji +6

Active galactic nucleus (AGN) feedback is widely viewed as the most promising solution to the long-standing cooling flow problem in galaxy clusters, yet previous models prescribe j…

astro-ph.GA2025

The Low-Frequency Spectra of Radio Pulsars

Ting Yu, Zhongli Zhang, Hongyu Gong +1

Low-frequency spectral studies of radio pulsars represent a key method for uncovering their emission mechanisms, magnetospheric structure, and signal interactions with the surround…

astro-ph.GA2025

Warm absorber outflows in radio-loud active galactic nucleus 3C~59

Yijun Wang, Tao Wang, Junjie Mao +8

Both jets and ionized outflows in active galactic nuclei (AGNs) are thought to play important roles in affecting the star formation and evolution of host galaxies, but their relati…

astro-ph.GA2025★ 1 cited

J-PAS: Discovery of RaJav, a bright spatially extended Ly Nebula at z=2.25

P. T. Rahna, M. Akhlaghi, J. A. Fernández-Ontiveros +29

We report the discovery of a massive and potentially largest Ly Nebula, RaJav, at z=2.25, associated with a quasar pair: the bright SDSS~J162029.07+433451.1 (hereafter J1620+433…

astro-ph.GA2025

Extended Components of Little Red Dots in the Rest-Frame Optical

Yiyang Zhang, Xuheng Ding, Lilan Yang +26

Recent JWST observations have revealed a population of red, compact, high-redshift objects called Little Red Dots (LRDs), whose host components have remained largely unconstrained,…

astro-ph.GA2025★ 4 cited

A Vertically Orientated Dark Matter Halo Marks a Flip of the Galactic Disk

Ling Zhu, Runsheng Cai, Xi Kang +5

Unveiling the 3D shape of the Milky Way's dark-matter halo is critical to understanding its formation history. We created an innovative dynamical model with minimal assumptions on…

astro-ph.GA2025★ 1 cited

The origin of double-peaked narrow emission-line galaxies in MaNGA Survey

Zhiyun Zhang, Yanmei Chen, Shiyin Shen +5

We select 36 double-peaked narrow emission-line galaxies (DPGs) from 10,010 unique galaxies in MaNGA survey. These DPGs show double-peaked Balmer lines and forbidden lines in the s…

astro-ph.GA2025★ 7 cited

A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core

Xiaofeng Mai, Tie Liu, Xunchuan Liu +42

High-mass stars, born in massive dense cores (MDCs), profoundly impact the cosmic ecosystem through feedback processes and metal enrichment, yet little is known about how MDCs asse…

astro-ph.GA2025★ 1 cited

Orbit-based structural decomposition and stellar population recovery for edge-on barred galaxies

Yunpeng Jin, Ling Zhu, Behzad Tahmasebzadeh +3

In our previous paper, we developed an orbit-superposition method for edge-on barred galaxies and constructed a set of dynamical models based on different mock observations of thre…

astro-ph.GA2025

Spectroscopic Observations and Emission-Line Diagnoses for H ii Regions in the Late-Type Spiral Galaxy NGC 2403

Qi-Ming Wu, Ye-Wei Mao, Lin Lin +2

Being ionized nebulae where star formation events take place, H ii regions are not only natural laboratories for studying physical processes of star formation and photoionization b…

astro-ph.GA2025★ 6 cited

Massive extended streamers feed high-mass young stars

Fernando A. Olguin, Patricio Sanhueza, Adam Ginsburg +13

Stars are born in a variety of environments that determine how they gather gas to achieve their final masses. It is generally believed that disks are ubiquitous around protostars a…

astro-ph.GA2025★ 2 cited

Chemical templates of the Central Molecular Zone. Shock and protostellar object signatures under Galactic Center conditions

Katarzyna M. Dutkowska, Gijs Vermariën, Serena Viti +21

(Abridged) The Central Molecular Zone (CMZ) of the Milky Way exhibits extreme conditions, including high gas densities, elevated temperatures, enhanced cosmic-ray ionization rates,…

astro-ph.GA2025★ 1 cited

Investigating the residuals in the relation using the SIMBA cosmological simulation

Wenlin Ma, Weiguang Cui, Romeel Davé +2

We study the scaling relation between the black hole and stellar mass (), diagnosing the residual () in this relation to understand the…

astro-ph.GA2025★ 1 cited

Revisiting the Radial Metallicity Gradient-Age Relation in the Milky Way's Thin and Thick Disks

Ao Chen, Juntai Shen, Chun Wang +1

Galactic disks typically exhibit a negative radial metallicity gradient, indicating faster enrichment in the inner regions. Recent studies report that this gradient becomes flatter…

astro-ph.GA2025★ 3 cited

Sulfur oxides tracing streamers and shocks at low mass protostellar disk-envelope interfaces

X. -C. Liu, E. F. van Dishoeck, M. R. Hogerheijde +8

Accretion shocks are thought to play a crucial role in the early stages of star and planet formation, but their direct observational evidence remains elusive, particularly regardin…

astro-ph.GA2025

An S-shaped filament formed due to Cloud-Cloud Collision in molecular cloud G178.28-00.61

Tianwei Zhang, Tie Liu, Yuefang Wu +18

We present compelling observational evidence supporting G178.28-00.61 as an early-stage candidate for Cloud-Cloud Collision (CCC), with indications of the formation of an S-shaped…

astro-ph.GA2025

The collar of early-type galaxies -- probing evolution by focusing on the inner stellar density profile

Rongfu Liu, Alessandro Sonnenfeld, Carlo Nipoti +1

Aims: In this work we aim to investigate the late evolution of ETGs, both observationally and theoretically, by focusing on the stellar mass density profile inside a fixed aperture…

astro-ph.GA2025★ 6 cited

The effects of the orbital configurations of mergers on reshaping galaxy structures

Xinyi Wu, Ling Zhu, Jiang Chang +2

We performed a systematic analysis of how the orbital configuration of a merger can influence the structural formation of remnant galaxies using 531 merger pairs selected from Illu…