activity
20182026
most citedReionization and galaxy inference from the high-redshift Lyα forest

125 citations · 1k across the 49 of their papers we have counts for

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8 papers · 1 filter

astro-ph.GA2026

Nearly pristine gas in a galaxy 1 billion years after the Big Bang

Sarah E. I. Bosman, Frederick B. Davies, Louise Welsh +22

Excitation of carbon and oxygen ions is the primary mechanism by which collapsing gas clouds dissipate heat to form new stars. At early cosmic times, in galaxies with chemically pr…

astro-ph.GA2026

: a close quasar pair at cosmic dawn in the Aether survey

Silvia Onorato, Emanuele Paolo Farina, Roberto Decarli +32

We present the discovery and first characterization of : the most compact known quasar pair candidate in the Epoch of Reionization, with a projected se…

astro-ph.GA2026

To be lensed or not to be lensed: on the nature of the alleged high-z lensed quasars J0109-5424 and P170+20

Aurora Mata-Sanchez, Emanuele P. Farina, Anniek J. Gloudemans +17

We present a detailed multi-wavelength analysis of two gravitationally lensed z>6 quasar candidates: J0109-5424 and P170+20. Using JWST/NIRSpec near-infrared data from the Aether s…

astro-ph.GA2026

Quasar Impostors: Two Extremely UV-Bright () Reionisation-Epoch Galaxies Powered by Very Massive Stars

Daming Yang, Joseph F. Hennawi, Sarah E. I. Bosman +20

The extreme bright end of the galaxy UV luminosity function during reionisation remains poorly constrained, particularly where the galaxy and quasar luminosity functions overlap an…

astro-ph.GA2026

Where did all the Little Red Dots go? The abundance of LRD analogues among objects with broad lines at

Lasse Seyberlich, Sarah E. I. Bosman

One of the most puzzling discoveries since the launch of the James Webb Space Telescope is a numerous population of sources at high redshift nicknamed ``Little Red Dots'' (LRDs). C…

astro-ph.GA2026

Broad Paschen lines as black hole mass tracers: A reverberation mapping calibration

Shengxiu Sun, Sarah E. I. Bosman, Frederick B. Davies +4

Single-epoch (SE) black hole mass estimators based on rest-frame ultraviolet or optical broad lines can be limited by dust attenuation or wavelength coverage. We calibrate estimato…

astro-ph.GA2026

Changing-Look AGNs from DESI. VI. Host Galaxies

Shengxiu Sun, Linhua Jiang, Wei-Jian Guo +2

Changing-look (CL) AGNs trace rapid changes in nuclear activity, but their connection to host galaxy properties remains unclear. We present a study of the host galaxies of 105 CL A…

astro-ph.GA2026

First-star imprints in a metal-poor galaxy overdensity near the end of reionization

Zihao Li, Koki Kakiichi, Lise Christensen +24

The first generation of stars, known as Population III (Pop III), formed from primordial gas consisting solely of hydrogen and helium and is believed to have emerged only a few hun…