Showing 2023 · astro-ph.GAShow all

41 papers · 2 filters

astro-ph.GA2023★ 20 cited

Early results from GLASS-JWST. XXVII. The mass-metallicity relation in lensed field galaxies at cosmic noon with NIRISS

Xianlong He, Xin Wang, Tucker Jones +20

We present a measurement of the mass-metallicity relation (MZR) at cosmic noon, using the JWST near-infrared wide-field slitless spectroscopy obtained by the GLASS-JWST Early Relea…

astro-ph.GA2023★ 7 cited

Exploring the ex-situ components within Gaia DR3

Zhuohan Li, Gang Zhao, Ruizhi Zhang +3

The presence of Gaia DR3 provides a large sample of stars with complete 6D information, offering a fertile ground for the exploration of stellar objects that were accreted to the M…

astro-ph.GA2023★ 15 cited

The UV luminosity function at 0.6 < z < 1 from UVCANDELS

Lei Sun, Xin Wang, Harry I. Teplitz +75

UVCANDELS is a HST Cycle-26 Treasury Program awarded 164 orbits of primary ultraviolet (UV) F275W imaging and coordinated parallel optical F435W imaging in four CANDELS fields: GOO…

astro-ph.GA2023★ 6 cited

Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars

Tiancheng Sun, Shaolan Bi, Xunzhou Chen +11

The Milky Way underwent significant transformations in its early history, characterised by violent mergers and satellite galaxy accretion. However, recent observations reveal notab…

astro-ph.GA2023★ 19 cited

Candidate Members of the VMP/EMP Disk System of the Galaxy from the SkyMapper and SAGES Surveys

Jihye Hong, Timothy C. Beers, Young Sun Lee +15

Photometric stellar surveys now cover a large fraction of the sky, probe to fainter magnitudes than large-scale spectroscopic surveys, and are relatively free from the target-selec…

astro-ph.GA2023★ 9 cited

UV-Bright Star-Forming Clumps and Their Host Galaxies in UVCANDELS at 0.5 z 1

Alec Martin, Yicheng Guo, Xin Wang +32

Giant star-forming clumps are a prominent feature of star-forming galaxies (SFGs) and contain important clues on galaxy formation and evolution. However, basic demographics of clum…

astro-ph.GA2023★ 17 cited

The abundance of dark matter haloes down to Earth mass

Haonan Zheng, Sownak Bose, Carlos S. Frenk +5

We use the Voids-within-Voids-within-Voids (VVV) simulations, a suite of successive nested N-body simulations with extremely high resolution (denoted, from low to high resolution,…

astro-ph.GA2023★ 7 cited

MaNGA DynPop -- VI. Matter density slopes from dynamical models of 6000 galaxies versus cosmological simulations: the interplay between baryonic and dark matter

Shubo Li, Ran Li, Kai Zhu +5

We try to understand the trends in the mass density slopes as a function of galaxy properties. We use the results from the best Jeans Anisotropic Modelling (JAM) of the integral-fi…

astro-ph.GA2023★ 9 cited

Galactic Interstellar Scintillation Observed from Four Globular Cluster Pulsars by FAST

Dandan Zhang, Zhenzhao Tao, Mao Yuan +9

We report detections of scintillation arcs for pulsars in globular clusters M5, M13 and M15 for the first time using the Five-hundred-meter Aperture Spherical radio Telescope (FAST…

astro-ph.GA2023★ 7 cited

Astrometric mass measurement of compact companions in binary systems with Gaia

Yilun Wang, Shilong Liao, Nicola Giacobbo +3

For binary systems with an unseen primary and a luminous secondary, the astrometric wobble of the secondary could be used to study the primary. With Gaia, it is possible to measure…

astro-ph.GA2023★ 2 cited

The Way to Quench: Galaxy evolution in Abell 2142

Cheng-Gong Qu, Heng Yu, Antonaldo Diaferio +2

We show how the star formation activity of galaxies is progressively inhibited from the outer region to the center of the massive cluster A2142. From an extended spectroscopic reds…

astro-ph.GA2023★ 14 cited

An Overdensity of Lyman Break Galaxies Around the Hot Dust-Obscured Galaxy WISE J224607.56052634.9

Dejene Zewdie, Roberto J. Assef, Chiara Mazzucchelli +8

We report the identification of Lyman Break Galaxy (LBG) candidates around the most luminous Hot Dust-Obscured Galaxy (Hot DOG) known, WISE J224607.56052634.9 (W22460526) at…

astro-ph.GA2023★ 2 cited

GMRT H I mapping of mid-infrared bright Blue Compact Dwarf Galaxies W1016+3754 & W2326+0608

Yogesh Chandola, Chao-Wei Tsai, Di Li +3

We present the results from deep 21 cm H I mapping of two nearby blue compact dwarf galaxies (BCDGs), W1016+3754 and W2326+0608, using the Giant Metrewave Radio Telescope (GMRT). T…

astro-ph.GA2023★ 14 cited

The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43

Janik Karoly, Derek Ward-Thompson, Kate Pattle +155

We present observations of polarized dust emission at 850 m from the L43 molecular cloud which sits in the Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on th…

astro-ph.GA2023★ 23 cited

What boost galaxy mergers in two massive galaxy protoclusters at z = 2.24

Shuang Liu, Xianzhong Zheng, Dongdong Shi +10

Characterizing the structural properties of galaxies in high-redshift protoclusters is key to our understanding of the environmental effects on galaxy evolution in the early stages…

astro-ph.GA2023★ 11 cited

Characterising abundance-age relations of GALAH stars using oxygen-enhanced stellar models

Tiancheng Sun, Xunzhou Chen, Shaolan Bi +3

Main Sequence Turn-off stars (MSTO) and subgiant stars are good tracers of galactic populations. We present a study of 41,034 MSTO and subgiant stars from the GALAH survey. Using a…

astro-ph.GA2023★ 10 cited

A Catalog of Distance Determinations for the LAMOST DR8 K Giants in the Galactic Halo

Lan Zhang, Xiang-Xiang Xue, Chengqun Yang +4

We present a catalog of distances for 19544 K giants drawn from LAMOST DR8. Most of them are located in the halo of the Milky Way up to ~120~kpc. There are 15% K giants without SDS…

astro-ph.GA2023★ 10 cited

Discovery of a Low-Redshift Hot Dust-Obscured Galaxy

Guodong Li, Chao-Wei Tsai, Daniel Stern +10

We report the discovery of the hyperluminous, highly obscured AGN WISE J190445.04+485308.9 (W1904+4853 hereafter, ) at z=0.415. Its well-s…

astro-ph.GA2023★ 8 cited

Assessing Mass Loss and Stellar-to-Halo Mass Ratio of Satellite Galaxies: A Galaxy-Galaxy Lensing Approach Utilizing DECaLS DR8 Data

Chunxiang Wang, Ran Li, Huanyuan Shan +9

The galaxy-galaxy lensing technique allows us to measure the subhalo mass of satellite galaxies, studying their mass loss and evolution within galaxy clusters and providing direct…

astro-ph.GA2023★ 18 cited

Environmental dependence of the mass-metallicity relation in cosmological hydrodynamical simulations

Kai Wang, Xin Wang, Yangyao Chen

We investigate the environmental dependence of the gas-phase metallicity for galaxies at to and the underlying physical mechanisms driving this dependence using…

astro-ph.GA2023★ 18 cited

A complete catalogue of broad-line AGNs and double-peaked emission lines from MaNGA integral-field spectroscopy of 10K galaxies: stellar population of AGNs, supermassive black holes, and dual AGNs

Youquan Fu, Michele Cappellari, Shude Mao +3

We analyse the integral-field spectroscopy data for the galaxies in final data release of the MaNGA survey. We identify 188 galaxies for which the emission lines ca…

astro-ph.GA2023★ 5 cited

Physical cool-core condensation radius in massive galaxy clusters

Lei Wang, Paolo Tozzi, Heng Yu +2

We investigate the properties of cool cores in an optimally selected sample of 37 massive and X-ray-bright galaxy clusters, with regular morphologies, observed with Chandra. We mea…

astro-ph.GA2023★ 11 cited

Early results from GLASS-JWST. XX: Unveiling a population of "red-excess'' galaxies in Abell2744 and in the coeval field

Benedetta Vulcani, Tommaso Treu, Antonello Calabro +26

We combine JWST/NIRCam imaging and MUSE data to characterize the properties of galaxies in different environmental conditions in the cluster Abell2744 () and in its immed…

astro-ph.GA2023★ 6 cited

Spatial metallicity variations of mono-temperature stellar populations revealed by early-type stars in LAMOST

Chun Wang, Haibo Yuan, Maosheng Xiang +3

We investigate the radial metallicity gradients and azimuthal metallicity distributions on the Galactocentric -- plane using mono-temperature stellar populations selected fro…