activity
20242026
most citedThe warm outer layer of a Little Red Dot as the source of [Fe II] and collisional Balmer lines with scattering wings

14 citations · 19 across the 10 of their papers we have counts for

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Showing 2025Show all

15 papers · 1 filter

astro-ph.GA2025

A Super-Eddington, Lensing-Magnified Quasar at observed with JWST

Katherine Panebianco, Minghao Yue, Anna-Christina Eilers +4

We present JWST/NIRCam F070W and F480M imaging for a quasar at , J0025-0145, which is magnified by a foreground lensing galaxy. Existing Hubble Space Telescope (HST) imag…

astro-ph.GA2025

Disturbed cold gas in galaxy and structure formation

Siwei Zou, Robert A. Simcoe, Patrick Petitjean +18

Cold and cool gas (T K) in the circumgalactic medium (CGM) and its interaction with galaxies remain poorly understood. Simulations predict that cold gas flows into gala…

astro-ph.GA2025

BEES: Quasar lifetime measurements from extended rest-optical emission line nebulae at

Dominika Ďurovčíková, Anna-Christina Eilers, Yuzo Ishikawa +13

Measurements of quasar lifetimes at high redshift indicate that the earliest billion-solar-mass supermassive black holes (SMBHs) have only been active as luminous quasars for less…

astro-ph.GA2025

H I Properties of Field Galaxies at -0.6: Insights into Declining Cosmic Star Formation

David DePalma, Neeraj Gupta, Hsiao-Wen Chen +18

We report statistically significant detection of H I 21-cm emission from intermediate-redshift (-0.6) galaxies. By leveraging multi-sightline galaxy survey data from t…

astro-ph.GA2025

Escape fractions from unattenuated Ly emitters around luminous quasars

Minghao Yue, Anna-Christina Eilers, Jorryt Matthee +7

Ionized proximity zones around luminous quasars provide a unique laboratory to characterize the Ly emission lines from galaxies without significant attenuation from the i…

astro-ph.GA2025

Quasar lifetime measurements from extended Ly nebulae at

Dominika Ďurovčíková, Anna-Christina Eilers, Romain A. Meyer +7

The existence of billion-solar-mass black holes hosted in luminous quasars within the first gigayear of cosmic history poses a challenge to our understanding of supermassive black…