TY - JOUR
T1 - Early Results from GLASS-JWST. XVII. Building the First Galaxies—Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies
AU - Dressler, Alan
AU - Vulcani, Benedetta
AU - Treu, Tommaso
AU - Rieke, Marcia
AU - Burns, Chris
AU - Calabrò, Antonello
AU - Bonchi, Andrea
AU - Castellano, Marco
AU - Fontana, Adriano
AU - Leethochawalit, Nicha
AU - Mason, Charlotte
AU - Merlin, Emiliano
AU - Morishita, Takahiro
AU - Paris, Diego
AU - Bradac, Marusa
AU - Mercurio, Amata
AU - Nanayakkara, Themiya
AU - Poggianti, Bianca M.
AU - Santini, Paola
AU - Wang, Xin
AU - Misselt, Karl
AU - Stark, Daniel P
AU - Willmer, Christopher
N1 - Publisher Copyright:
© 2023. The Author(s). Published by the American Astronomical Society.
PY - 2023/4/1
Y1 - 2023/4/1
N2 - The JWST observations of high-redshift galaxies are used to measure their star formation histories—the buildup of stellar mass in the earliest galaxies. Here we use a novel analysis program, SEDz*, to compare near-IR spectral energy distributions for galaxies with redshifts 5 < z < 7 to combinations of stellar population templates evolved from z = 12. We exploit NIRCam imaging in seven wide bands covering 1-5 μm taken in the context of the GLASS-JWST-ERS program and use SEDz* to solve for well-constrained star formation histories for 24 exemplary galaxies. In this first look, we find a variety of histories, from long, continuous star formation over 5 < z < 12 to short but intense starbursts, sometimes repeating, and, most commonly, contiguous mass buildup lasting ∼0.5 Myr, possibly the seeds of today’s typical M* galaxies.
AB - The JWST observations of high-redshift galaxies are used to measure their star formation histories—the buildup of stellar mass in the earliest galaxies. Here we use a novel analysis program, SEDz*, to compare near-IR spectral energy distributions for galaxies with redshifts 5 < z < 7 to combinations of stellar population templates evolved from z = 12. We exploit NIRCam imaging in seven wide bands covering 1-5 μm taken in the context of the GLASS-JWST-ERS program and use SEDz* to solve for well-constrained star formation histories for 24 exemplary galaxies. In this first look, we find a variety of histories, from long, continuous star formation over 5 < z < 12 to short but intense starbursts, sometimes repeating, and, most commonly, contiguous mass buildup lasting ∼0.5 Myr, possibly the seeds of today’s typical M* galaxies.
UR - https://www.scopus.com/pages/publications/85153889801
UR - https://www.scopus.com/pages/publications/85153889801#tab=citedBy
U2 - 10.3847/2041-8213/ac9ebb
DO - 10.3847/2041-8213/ac9ebb
M3 - Article
AN - SCOPUS:85153889801
SN - 2041-8205
VL - 947
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L27
ER -