Showing 2025 · astro-ph.GAShow all

97 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★ 3 cited

A large, long-lived, slowly-expanding superbubble across the Perseus Arm

Bingqiu Chen, Guangxing Li, Haibo Yuan +5

Stellar feedback is a crucial mechanism in galactic evolution, as demonstrated by the widespread bubbles observed with JWST. In this study, we combine data from Gaia and LAMOST to…

astro-ph.GA2025

The AGN nature of strong CIII emitters in the Early Universe with JWST

F. Arevalo-Gonzalez, R. Tripodi, M. Llerena +21

The semi-forbidden CIII] 1907,1909 doublet is a key tracer of high-ionization emission in the early universe. We present a study of CIII] emission in galaxies at z=5-7, using p…

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

A global view on star formation: The GLOSTAR Galactic plane survey XII. Effelsberg's continuum view and data release

Y. Gong, W. Reich, M. R. Rugel +24

Extended radio continuum emission and its linear polarization play a key role in probing large-scale structures of synchrotron and free-free emission in the Milky Way. Despite the…

astro-ph.GA2025

Rapid sinking and efficient mergers of supermassive black holes in compact high-redshift galaxies

Atte Keitaanranta, Peter H. Johansson, Alexander Rawlings +5

We present a cosmological zoom-in simulation targeting the high redshift compact progenitor phase of massive galaxies, with the most massive galaxy reaching a stellar mass of $M_{\…

astro-ph.GA2025★ 1 cited

Intermediate Mass Black Hole Binary Evolution in Nuclear Star Clusters: the effect of the stellar mass black hole population

Fazeel Mahmood Khan, Peter Berczik, Margarita Sobolenko +4

In this study, we investigate the dynamics of Intermediate-Mass Black Hole (IMBH) binaries within Nuclear Star Clusters (NSCs) that contain a population of stellar-mass black holes…

astro-ph.GA2025

A Chandra view of SPT-CL J0217-5014: a massive galaxy cluster at a cosmic intersection at z=0.53

Dan Hu, Shida Fan, Zhongsheng Yuan +7

Galaxy clusters trace the densest regions of the cosmic web and are crucial laboratories for studying the thermodynamic and chemical evolution of the intracluster medium (ICM). We…

astro-ph.GA2025

Galaxy clusters from the DESI Legacy Imaging Surveys -- III. Star-forming fraction of brightest cluster galaxies

Shufei Liu, Hu Zou, Jinfu Gou +10

This study investigates the evolution of the star-forming fraction () of Brightest Cluster Galaxies (BCGs) at , using the galaxy clusters identified from th…

astro-ph.GA2025★ 3 cited

SDSS-V LVM: Resolving Physical Conditions in the Trifid Nebula

Natascha Sattler, J. Eduardo Méndez-Delgado, Kathryn Kreckel +18

The chemical abundance of the interstellar medium sets the initial conditions for star formation and provides a probe of chemical galaxy evolution models. However, unresolved inhom…

astro-ph.GA2025

The GLASS-JWST Early Release Science Program. V. H luminosity functions at and

Yuxuan Pang, Xin Wang, Tommaso Treu +11

We present H luminosity function (LF) measurements at redshifts and using JWST NIRISS grism data from the GLASS-JWST survey. Based on emission lines spectr…

astro-ph.GA2025★ 2 cited

A Spatially Resolved Evolutionary Sequence of Multi-wavelength AGN Host Galaxies

Gaoxiang Jin, Guinevere Kauffmann, Y. Sophia Dai +2

We study the spatially resolved star formation, gas ionisation, and outflow properties of 1813 active galactic nuclei (AGNs) from the MaNGA survey, which we classify into infrared…

astro-ph.GA2025★ 1 cited

Stellar feedback drives the baryon deficiency in low-mass galaxies

Haoran Yu, Enci Wang, Zeyu Chen +8

Stellar feedback, as a key process regulating the baryon cycle, is thought to greatly redistribute baryonic material inside and outside the dark matter halos (DMHs), however the ob…

astro-ph.GA2025

The DESI Single Fiber Lens Search. I. Four Thousand Spectroscopically Selected Galaxy-Galaxy Gravitational Lens Candidates

Juliana S. M. Karp, David J. Schlegel, Xiaosheng Huang +47

We present 4,110 strong gravitational lens candidates, 3,887 of which are new discoveries, selected from a sample of 5,837,154 luminous red galaxies (LRGs) observed with the Dark E…

astro-ph.GA2025

Investigating the Impacts of AGN Activities on Dwarf Galaxies with FAST HI Observations

Hong-Ying Chen, Chao-Wei Tsai, Pei Zuo +9

We present the results of Hi line observations towards 26 Active Galactic Nuclei (AGN)-hosting and one star-forming dwarf galaxies (Mstar < 10^9.5 Msun) with the 19-beam spectral l…

astro-ph.GA2025★ 1 cited

Probing the influence of the protocluster environment on galaxy morphology at z = 2.23

Emmet Golden-Marx, Zheng Cai, Dongdong Shi +7

As galaxies evolve in dense cluster and protocluster environments, they interact and quench their star formation, which gradually transforms the galaxy population from star-forming…

astro-ph.GA2025★ 1 cited

Back to basics: Little Red Dots as galaxies and dust-obscured AGNs in a synthetic NIRCam sky simulated with L-GalaxiesBH

Diego Herrero-Carrión, Daniele Spinoso, David Izquierdo-Villalba +3

The enigmatic Little Red Dots (LRDs) discovered by the James Webb Space Telescope (JWST) exhibit properties challenging their interpretation as common galaxies or Active Galactic N…

astro-ph.GA2025

Quantifying Spectroscopic Flux Variations Between JWST NIRISS and NIRSpec: Slit Losses in Emission Line Measurements of z1-3 Galaxies

Nicolò Dalmasso, Peter J. Watson, Tommaso Treu +9

We analyze JWST NIRISS and NIRSpec spectroscopic observations in the Abell 2744 galaxy cluster field. From approximately 120 candidates, we identify 12 objects with at least a prom…

astro-ph.GA2025★ 5 cited

Targeting cluster galaxies for the 4MOST CHANCES Low-z sub-survey with photometric redshifts

Hugo Méndez-Hernández, Ciria Lima-Dias, Antonela Monachesi +54

The evolution of galaxies is shaped by both internal processes and their external environments. Galaxy clusters and their surroundings provide ideal laboratories to study these eff…

astro-ph.GA2025★ 1 cited

Milky Way Mass Through Escape Velocity Curve from LAMOST K Giants

Yin Wu, Haining Li, Yang Huang +2

Escape velocity has long been used to constrain the mass of the Dark Matter (DM) halo in the Milky Way (MW). Here we present a study of the escape velocity curve using a sample of…

astro-ph.GA2025★ 1 cited

The Nearby Evolved Stars Survey III: First data release of JCMT CO-line observations

S. H. J. Wallström, P. Scicluna, S. Srinivasan +37

Low- to intermediate-mass (0.88 M) evolved stars contribute significantly to the chemical enrichment of the interstellar medium in the local Universe, making accur…

astro-ph.GA2025★ 4 cited

The evolution of CH in Planck Galactic Cold Clumps

Gan Luo, Arshia M. Jacob, Marco Padovani +6

Methylidyne (CH) has long been considered a reliable tracer of molecular gas in the low-to-intermediate extinction range. Although extended CH 3.3 GHz emission is commonly observed…

astro-ph.GA2025

Extreme equivalent width-selected low-mass starbursts at : insights into their role in cosmic reionization

M. Llerena, L. Pentericci, R. Amorín +22

We investigate the properties of extreme emission line galaxies (EELGs) at and their role in reionization. Compact, low-mass galaxies with intense optical emission lines ar…

astro-ph.GA2025★ 4 cited

A census of quiescent galaxies across with JWST/MIRI: Mass-dependent number density evolution of quiescent galaxies in the early Universe

Tiancheng Yang, Tao Wang, Ke Xu +12

Recent JWST observations have revealed a large population of quiescent galaxies (QGs) at high redshift (), challenging current models of early galaxy formation and quen…