Showing 2022 · astro-ph.GAShow all

20 papers · 2 filters

astro-ph.GA2022★ 26 cited

The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament

Tao-Chung Ching, Keping Qiu, Di Li +154

We present 850 m dust polarization observations of the massive DR21 filament from the B-fields In STar-forming Region Observations (BISTRO) survey, using the POL-2 polarimeter a…

astro-ph.GA2022★ 15 cited

Local Group Dwarf Galaxy Detection Limit in the CSST survey

Han Qu, Zhen Yuan, Amandine Doliva-Dolinsky +9

We predict the dwarf galaxy detection limits for the upcoming Chinese Space Station Telescope (CSST) survey that will cover 17,500 deg of the sky with a wide field of view of…

astro-ph.GA2022★ 7 cited

Discovery of a radio jet in the Cloverleaf Quasar at z = 2.56

Lei Zhang, Zhi-Yu Zhang, James. W. Nightingale +10

The fast growth of supermassive black holes and their feedback to the host galaxies play an important role in regulating the evolution of galaxies, especially in the early Universe…

astro-ph.GA2022★ 123 cited

Early Results from GLASS-JWST. XIX: A High Density of Bright Galaxies at in the Abell 2744 Region

Marco Castellano, Adriano Fontana, Tommaso Treu +38

We report the detection of a high density of redshift galaxies behind the foreground cluster Abell 2744, selected from imaging data obtained recently with NIRCam onbo…

astro-ph.GA2022★ 34 cited

A strong He II 1640 emitter with extremely blue UV spectral slope at : presence of Pop III stars?

Xin Wang, Cheng Cheng, Junqiang Ge +12

Cosmic hydrogen reionization and cosmic production of first metals are major phase transitions of the universe occurring during the first billion years after the Big Bang, however…

astro-ph.GA2022★ 123 cited

Early results from GLASS-JWST. XIV: A spectroscopically confirmed protocluster 650 million years after the Big Bang

Takahiro Morishita, Guido Roberts-Borsani, Tommaso Treu +39

We present the spectroscopic confirmation of a protocluster at behind the galaxy cluster Abell2744 (hereafter A2744-z7p9OD). Using JWST NIRSpec, we find seven galaxies wit…

astro-ph.GA2022★ 59 cited

Empirical temperature- and extinction-dependent extinction coefficients for the GALEX, Pan-STARRS1, Gaia, SDSS, 2MASS, and WISE passbands

Ruoyi Zhang, Haibo Yuan

We have obtained accurate dust reddening from far-ultraviolet (UV) to the mid-infrared (IR) for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters…

astro-ph.GA2022★ 78 cited

The nature of an ultra-faint galaxy in the cosmic Dark Ages seen with JWST

Guido Roberts-Borsani, Tommaso Treu, Wenlei Chen +44

In the first billion years after the Big Bang, sources of ultraviolet (UV) photons are believed to have ionized intergalactic hydrogen, rendering the Universe transparent to UV rad…

astro-ph.GA2022★ 31 cited

The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2

Jihye Hwang, Jongsoo Kim, Kate Pattle +157

We present and analyze observations of polarized dust emission at 850 m towards the central 1 pc 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obta…

astro-ph.GA2022★ 41 cited

GOALS-JWST: Resolving the Circumnuclear Gas Dynamics in NGC 7469 in the Mid-Infrared

Vivian U, Thomas Lai, Marina Bianchin +35

The nearby, luminous infrared galaxy (LIRG) NGC 7469 hosts a Seyfert nucleus with a circumnuclear star-forming ring and is thus the ideal local laboratory for investigating the sta…

astro-ph.GA2022★ 25 cited

Characterizing Compact 15-33 GHz Radio Continuum Sources in Local U/LIRGs

Y. Song, S. T. Linden, A. S. Evans +23

We present the analysis of pc-scale compact radio continuum sources detected in 63 local (Ultra) Luminous Infrared Galaxies (U/LIRGs; ), u…

astro-ph.GA2022★ 42 cited

Milky Way Mass with K Giants and BHB Stars Using LAMOST, SDSS/SEGUE, and Gaia: 3D Spherical Jeans Equation and Tracer Mass Estimator

Sarah A. Bird, Xiang-Xiang Xue, Chao Liu +8

We measure the enclosed Milky Way mass profile to Galactocentric distances of and kpc using the smooth, diffuse stellar halo samples of Bird et al. The samples ar…

astro-ph.GA2022★ 9 cited

Multi-wavelength Variation Phenomena of PKS 0735+178 on Diverse Timescale

Yue Fang, Qihang Chen, Yan Zhang +1

BL Lac object PKS 0735+178 showed some complex multi-wavelength variation phenomena in the previous studies, especially for its color behavior. Bluer-when-brighter, redder-when-bri…

astro-ph.GA2022★ 10 cited

Extragalactic HI survey with FAST : First look of the pilot survey results

Jiangang Kang, Ming Zhu, Mei Ai +2

As first data release of a pilot extragalactic HI survey with Five-hundred-meter Aperture Spherical radio Telescope (FAST),we extracted 544 extragalaxies from three-dimensional(3D)…

astro-ph.GA2022★ 13 cited

Dust Extinction Law in Nearby Star-Resolved Galaxies. II. M33 Traced by Supergiants

Yuxi Wang, Jian Gao, Yi Ren +1

The dust extinction curves toward individual sight lines in M33 are derived for the first time with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The o…

astro-ph.GA2022★ 24 cited

Validations and Corrections of the SFD and Planck Reddening Maps Based on LAMOST and Gaia Data

Yang Sun, Haibo Yuan, Bingqiu Chen

Precise correction of dust reddening is fundamental to obtain the intrinsic parameters of celestial objects. The Schlegel et al. (SFD) and the Planck 2D extinction maps are widely…

astro-ph.GA2022★ 93 cited

Overview of the LAMOST survey in the first decade

Hongliang Yan, Haining Li, Song Wang +24

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), also known as the Guoshoujing Telescope, is a major national scientific facility for astronomical research l…

astro-ph.GA2022★ 7 cited

Revisit NGC 5466 Tidal Stream with , SDSS/SEGUE and LAMOST

Yong Yang, Jing-Kun Zhao, Miho N. Ishigaki +5

By mining the data from EDR3, SDSS/SEGUE DR16 and LAMOST DR8, 11 member stars of the NGC 5466 tidal stream are detected and 7 of them are newly identified. To reject contami…

astro-ph.GA2022★ 41 cited

B-fields in Star-Forming Region Observations (BISTRO): Magnetic Fields in the Filamentary Structures of Serpens Main

Woojin Kwon, Kate Pattle, Sarah Sadavoy +149

We present 850 m polarimetric observations toward the Serpens Main molecular cloud obtained using the POL-2 polarimeter on the James Clerk Maxwell Telescope (JCMT) as part of th…

astro-ph.GA2022★ 26 cited

Dust distributions in the Magellanic Clouds

B. -Q. Chen, H. -L. Guo, J. Gao +3

We present high-resolution maps of the dust reddening in the Magellanic Clouds (MCs). The maps cover the Large and Small Magellanic Cloud (LMC and SMC) area and have a spatial angu…