activity
20142026
most citedAn 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5

1.1k citations · 7k across the 113 of their papers we have counts for

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Showing 2025Show all

11 papers · 1 filter

astro-ph.GA2025

A close look at the black hole masses and hot dusty toruses of the first quasars with MIRI-MRS

Sarah E. I. Bosman, Javier Álvarez-Márquez, Frederick B. Davies +29

The presence of supermassive black holes (SMBHs, ) at remains a puzzle. While their existence appears to require exotic formation or growth proce…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.GA2025★ 2 cited

Extreme Galaxy-scale Outflows Are Frequent among Luminous Early Quasars

Weizhe Liu, Xiaohui Fan, Huan Li +23

The existence of abundant post-starburst/quiescent galaxies just 1-2 Gyrs after the Big Bang challenges our current paradigm of galaxy evolution. Cosmological simulations sug…

astro-ph.GA2025

How similar are narrow-line Seyfert 1 galaxies and high-z type 1 AGN?

Marco Berton, Emilia Järvelä, Alessia Tortosa +1

The recent observations of highly accreting supermassive black holes (SMBH) at very high redshift (4) with the James Webb Space Telescope (\textit{JWST}) allowed us to shed lig…

astro-ph.GA2025★ 1 cited

The Identification of Two JWST/NIRCam-Dark Starburst Galaxies at with ALMA

Fengwu Sun, Jinyi Yang, Feige Wang +20

We analyze two dusty star-forming galaxies at . These galaxies are selected from the ASPIRE survey, a JWST Cycle-1 medium and ALMA Cycle-9 large program targeting 25 quasars…

astro-ph.GA2025★ 9 cited

Discovery and characterization of 25 new quasars at 4.6 < z < 6.9 from wide-field multi-band surveys

Silvia Belladitta, Eduardo Bañados, Zhang-Liang Xie +18

Luminous quasars at provide key insights into the early Universe. Their rarity necessitates wide-field multi-band surveys to efficiently separate them from the main astrophys…