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most citedRUBIES spectroscopically confirms the high number density of quiescent galaxies from

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astro-ph.GA2024

An unambiguous AGN and a Balmer break in an Ultraluminous Little Red Dot at z=4.47 from Ultradeep UNCOVER and All the Little Things Spectroscopy

Ivo Labbe, Jenny E. Greene, Jorryt Matthee +37

We present a detailed exploration of the most optically-luminous Little Red Dot (erg/s, erg/s, F444W=22AB) found to date. Located in the Abell 2744 fi…

astro-ph.GA2024

UNCOVER: A NIRSpec Census of Lensed Galaxies at z=8.50-13.08 Probing a High AGN Fraction and Ionized Bubbles in the Shadow

Seiji Fujimoto, Bingjie Wang, John Weaver +33

We present JWST NIRSpec prism spectroscopy of gravitationally lensed galaxies at found behind the massive galaxy cluster Abell 2744 in the UNCOVER Cycle 1 Treasury Prog…

astro-ph.GA2024

DESI Massive Post-Starburst Galaxies at have compact structures and dense cores

Yunchong Zhang, David J. Setton, Sedona H. Price +33

Post-starburst galaxies (PSBs) are young quiescent galaxies that have recently experienced a rapid decrease in star formation, allowing us to probe the fast-quenching period of gal…

astro-ph.GA2024

Little Red Dots at an Inflection Point: Ubiquitous "V-Shaped" Turnover Consistently Occurs at the Balmer Limit

David J. Setton, Jenny E. Greene, Anna de Graaff +18

Among the most puzzling early discoveries of JWST are "Little Red Dots" -- compact red sources that host broad Balmer emission lines and, in many cases, exhibit a "V shaped" change…

astro-ph.GA2024

RUBIES: JWST/NIRSpec resolves evolutionary phases of dusty star-forming galaxies at

Olivia R. Cooper, Gabriel Brammer, Kasper E. Heintz +24

The dearth of high quality spectroscopy of dusty star-forming galaxies (DSFGs) -- the main drivers of the assembly of dust and stellar mass at the peak of activity in the Universe…

astro-ph.GA2024

Efficient formation of a massive quiescent galaxy at redshift 4.9

Anna de Graaff, David J. Setton, Gabriel Brammer +23

Within the established framework of structure formation, galaxies start as systems of low stellar mass and gradually grow into far more massive galaxies. The existence of massive g…