activity
20152026
most citedAn ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30

757 citations · 2.6k across the 80 of their papers we have counts for

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Showing astro-ph.GAShow all

94 papers · 1 filter

astro-ph.GA2026

Discovery of Quasar Variability and Early Accretion Disk Signatures at Cosmic Dawn

Gene C. K. Leung, Anna-Christina Eilers, Christos Panagiotou +12

In the nearby universe, quasars are well known to exhibit variability in their brightness over time, offering a powerful tool to probe the physics of accretion onto the SMBH and di…

astro-ph.GA2026

A Close Quasar Pair in a Massive Galaxy Merger at

Minghao Yue, Xiaohui Fan, Anna-Christina Eilers +3

Close quasar pairs are rare products of galaxy mergers in which both supermassive black holes (SMBHs) are actively accreting, offering strong constraints on merger-driven active ga…

astro-ph.GA2026

Three Hundred Quasars from the Couch: A first look at high-redshift quasar discovery with SPHEREx

Frederick B. Davies, Sarah E. I. Bosman, Arpita Ganguly +9

Photometric selection of luminous high-redshift () quasars is plagued by contamination from numerous low-mass Galactic stars, reddened lower-redshift quasars, as well as…

astro-ph.GA2026

Clustering of z~6.6 Quasars and [O III] Emitters Constrains Host Halo Masses and Duty Cycles in 25 ASPIRE Fields

Jiamu Huang, Joseph Hennawi, Elia Pizzati +21

We use data from the JWST ASPIRE Wide Field Slitless Spectroscopy (WFSS) program to measure the auto-correlation function of [O,{\sc iii}] emitters at 5.37.0 and the quasar--[…

astro-ph.GA2025

ALMA and JWST Identification of Faint Dusty Star-Forming Galaxies up to z~8

Jorge A. Zavala, Andreas L. Faisst, Manuel Aravena +44

We exploit a new sample of around 400 bright dusty galaxies from the ALMA CHAMPS Large Program, together with the rich JWST multi-band data products in the COSMOS field, to explore…

astro-ph.GA20251 cited

Little red dot variability over a century reveals black hole envelope via a giant Einstein cross

Zijian Zhang, Mingyu Li, Masamune Oguri +79

"Little red dots" (LRDs) represent a new population of astronomical objects uncovered by JWST whose nature remains debated. Although many LRDs are suspected as active galactic nucl…