Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies. / Dressler, Alan; Vulcani, Benedetta; Treu, Tommaso; Rieke, Marcia; Burns, Chris; Calabro, Antonello; Bonchi, Andrea; Castellano, Marco; Fontana, Adriano; Leethochawalit, Nicha; Mason, Charlotte; Merlin, Emiliano; Morishita, Takahiro; Paris, Diego; Bradac, Marusa; Mercurio, Amata; Nanayakkara, Themiya; Poggianti, Bianca M.; Santini, Paola; Wang, Xin; Misselt, Karl; Stark, Daniel P.; Willmer, Christopher.
I: Astrophysical Journal Letters, Bind 947, Nr. 2, 27, 01.04.2023.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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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 - Calabro, 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
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 mu m 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 similar to 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 mu m 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 similar to 0.5 Myr, possibly the seeds of today's typical M* galaxies.
KW - STELLAR POPULATIONS
KW - REIONIZATION
KW - SPECTROSCOPY
KW - EVOLUTION
KW - CLUSTERS
KW - III.
KW - MASS
KW - AGE
U2 - 10.3847/2041-8213/ac9ebb
DO - 10.3847/2041-8213/ac9ebb
M3 - Letter
VL - 947
JO - The Astrophysical Journal Letters
JF - The Astrophysical Journal Letters
SN - 2041-8205
IS - 2
M1 - 27
ER -
ID: 355088823