4 papers · 1 filter
Tracing the Evolution of the Balmer Break from Cosmic Dawn to Cosmic Noon with JWST
Adarsh Kuruvanthodi, Daniel Schaerer, Rui Marques-Chaves +3
The Balmer break (BB) is a key spectral feature for constraining stellar population ages, star formation histories, and redshifts of high-redshift sources. The redshift evolution a…
RUBIES Reveals a Massive Quiescent Galaxy at z=7.3
Andrea Weibel, Anna de Graaff, David J. Setton +26
We report the spectroscopic discovery of a massive quiescent galaxy at , just Myr after the Big Bang. RUBIES-UDS-QG-z7 was selected from public…
Strong Balmer break objects at z ~ 7-10 uncovered with JWST
A. Kuruvanthodi, D. Schaerer, R. Marques-Chaves +4
We report the discovery of robust spectroscopically confirmed Balmer break (BB) galaxies and candidates, with secure spectroscopic redshifts from publicly avail…
Extreme N-emitters at high-redshift: signatures of supermassive stars and globular cluster or black hole formation in action?
R. Marques-Chaves, D. Schaerer, A. Kuruvanthodi +9
[Abridged] Using the JWST/NIRSpec observations from CEERS we found an extreme N-emitter, CEERS-1019 at z=8.6782 showing intense NIV and NIII emission. From the observed rest-UV and…