output
19922026
Showing astro-ph.GAShow all

627 papers · 1 filter

astro-ph.GA2026★ 1 cited

Discovery of a Barred-Spiral Galaxy at = 3.16 II. The Star Formation History

Yingjie Cheng, Mauro Giavalisco, Daniel Ivanov +6

We present a detailed analysis of a massive barred galaxy at using deep multi-band imaging from HST and JWST. For the first time, we resolve its morphology and st…

astro-ph.GA2026★ 1 cited

A New Member of the Fast and Furious Family: A Relativistic and Time-Variable UV Outflow in a Luminous Quasar

Lucas M. Seaton, Patrick B. Hall, Liliana Flores +20

We report the fastest quasar outflow first detected in the ultraviolet, via variable C IV and Si IV absorption at outflow velocities km s to at least km…

astro-ph.GA2026

Revisiting ram pressure stripping in Wolf-Lundmark-Melotte: No evidence for stripped HI with LGLBS

Daniel R. Rybarczyk, Eric W. Koch, Fabian Caballero Vargas +12

We analyze HI 21-cm observations of the Local Group dwarf galaxy Wolf-Lundmark-Melotte (WLM) from the Local Group L-Band Survey to search for evidence of ram pressure stripping. Wh…

astro-ph.GA2026

SDSS-V: Revealing a weak accretion state in X-ray selected red quasars

Paloma Guetzoyan, James Aird, Amy L. Rankine +17

Red quasars (rQSOs) have been recognized as a short-lived, early stage in the evolutionary cycle of Active Galactic Nuclei (AGN), with fundamental differences in their intrinsic pr…

astro-ph.GA2026

No Stream Left Unscathed: The imprint of a host galaxy

Arpit Arora, Peter S. Ferguson, Jacob Nibauer +11

Stellar streams from disrupted globular clusters are excellent probes of dark matter (DM) subhalos. Observed Milky Way streams display a remarkable diversity of features: spurs, ga…

astro-ph.GA2026

The Panchromatic Hubble Andromeda Southern Treasury (PHAST). II. The Spatially Resolved Recent Star Formation History in M31

Tobin M. Wainer, Benjamin F. Williams, Zhuo Chen +19

We use Hubble Space Telescope optical imaging from the Panchromatic Hubble Andromeda Southern Treasury (PHAST) to measure the spatially resolved recent star formation history (SFH)…