activity
20162026
most citedA Luminous Quasar at Redshift 7.642

450 citations · 2.8k across the 65 of their papers we have counts for

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Showing 2025Show all

12 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

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

EIGER VIII: First stars signatures in the connection between OI absorption and Galaxies in the Epoch of Reionization

Jack Higginson, Rongmon Bordoloi, Robert A. Simcoe +8

We investigate the association between galaxies and neutral OI absorption systems at z~6, which trace metal-enriched gas during the epoch of reionization. We identify 40 galaxies a…

astro-ph.GA2025

The Light Echo of a High-Redshift Quasar mapped with Lyman- Tomography

Anna-Christina Eilers, Minghao Yue, Jorryt Matthee +11

Ultra-violet (UV) radiation from accreting black holes ionizes the intergalactic gas around early quasars, carving out highly ionized bubbles in their surroundings. Any changes in…

astro-ph.GA2025

Quasar Radiative Feedback May Suppress Galaxy Growth on Intergalactic Scales at

Yongda Zhu, Eiichi Egami, Xiaohui Fan +27

We present observational evidence that intense ionizing radiation from a luminous quasar suppresses nebular emission in nearby galaxies on intergalactic scales at . Using JW…

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 in…

astro-ph.GA2025★ 1 cited

EIGER VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization

Daichi Kashino, Simon J. Lilly, Jorryt Matthee +7

We present a comprehensive analysis of the relationship between galaxies and the intergalactic medium (IGM) during the late stages of cosmic reionization, based on the complete JWS…

astro-ph.GA2025★ 1 cited

Quantifying biases in stellar masses of JWST high-z quasar host galaxies caused by quasar subtraction

Sabrina Berger, Madeline A. Marshall, J. Stuart B. Wyithe +4

JWST has enabled dozens of high- quasar host galaxy detections. Many of these observations imply galaxies with black holes that are overmassive compared to their low- counter…

astro-ph.GA2025★ 4 cited

An extremely metal-poor Lyman emitter candidate at revealed through absorption spectroscopy

Dominika Ďurovčíková, Anna-Christina Eilers, Robert A. Simcoe +10

We report the discovery of a Lyman emitter (LAE) candidate in the immediate foreground of the quasar PSO J158-14 at at a projected distance $\sim29\ {\rm p…

astro-ph.GA2025

Oxyster: A Circumgalactic Low-ionization Oxygen Nebula next to a Starburst Galaxy at

Pengjun Lu, Mingyu Li, Dalya Baron +3

Extended emission line nebulae around galaxies or active galactic nuclei (AGNs) provide a unique window to investigate the galactic ecosystem through the circumgalactic medium (CGM…

astro-ph.GA2025

Direct Evidence for AGN Feedback from Fast Molecular Outflows in Reionization-Era Quasars

Justin S. Spilker, Jaclyn B. Champagne, Xiaohui Fan +4

Galactic outflows driven by rapidly-accreting quasars at high redshift are widely expected to play a key role in the short- and long-term future evolution of their host galaxies. U…

astro-ph.GA2025★ 3 cited

Time Evolution of Mg II in SDSS J2320+0024: Implications for a Subparsec Binary Supermassive Black Hole System

Marta Fatović, Dragana Ilić, Andjelka B. Kovačević +8

Here we present results from our spectroscopic follow-up of SDSS J2320+0024, a candidate binary supermassive black hole (SMBH) with a suspected sub-pc separation, identified by a 2…