Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies

Alan Dressler; Benedetta Vulcani; Tommaso Treu; Marcia Rieke; Chris Burns; Antonello Calabro; Andrea Bonchi; Marco Castellano; Adriano Fontana; Nicha Leethochawalit; Charlotte Mason; Emiliano Merlin; Takahiro Morishita; Diego Paris; Marusa Bradac; Amata Mercurio; Themiya Nanayakkara; Bianca M. Poggianti; Paola Santini; Xin Wang; Karl Misselt; Daniel P. Stark; Christopher Willmer

doi:10.3847/2041-8213/ac9ebb

Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies

Alan Dressler^*, Benedetta Vulcani, Tommaso Treu, Marcia Rieke, Chris Burns, Antonello Calabro, Andrea Bonchi, Marco Castellano, Adriano Fontana, Nicha Leethochawalit, Charlotte Mason, Emiliano Merlin, Takahiro Morishita, Diego Paris, Marusa Bradac, Amata Mercurio, Themiya Nanayakkara, Bianca M. Poggianti, Paola Santini, Xin WangKarl Misselt, Daniel P. Stark, Christopher Willmer

^*Corresponding author for this work

The Cosmic Dawn Center

Research output: Contribution to journal › Letter › Research › peer-review

12 Citations (Scopus)

16 Downloads (Pure)

Abstract

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.

Original language	English
Article number	27
Journal	Astrophysical Journal Letters
Volume	947
Issue number	2
Number of pages	15
ISSN	2041-8205
DOIs	https://doi.org/10.3847/2041-8213/ac9ebb
Publication status	Published - 1 Apr 2023

Keywords

STELLAR POPULATIONS
REIONIZATION
SPECTROSCOPY
EVOLUTION
CLUSTERS
III.
MASS
AGE

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Cite this

Dressler, A., Vulcani, B., Treu, T., Rieke, M., Burns, C., Calabro, A., Bonchi, A., Castellano, M., Fontana, A., Leethochawalit, N., Mason, C., Merlin, E., Morishita, T., Paris, D., Bradac, M., Mercurio, A., Nanayakkara, T., Poggianti, B. M., Santini, P., ... Willmer, C. (2023). Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies. Astrophysical Journal Letters, 947(2), [27]. https://doi.org/10.3847/2041-8213/ac9ebb

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.

In: Astrophysical Journal Letters, Vol. 947, No. 2, 27, 01.04.2023.

Research output: Contribution to journal › Letter › Research › peer-review

Dressler, A, Vulcani, B, Treu, T, Rieke, M, Burns, C, Calabro, A, Bonchi, A, Castellano, M, Fontana, A, Leethochawalit, N, Mason, C, Merlin, E, Morishita, T, Paris, D, Bradac, M, Mercurio, A, Nanayakkara, T, Poggianti, BM, Santini, P, Wang, X, Misselt, K, Stark, DP & Willmer, C 2023, 'Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies', Astrophysical Journal Letters, vol. 947, no. 2, 27. https://doi.org/10.3847/2041-8213/ac9ebb

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. / Early Results from GLASS-JWST. XVII. Building the First Galaxies-Chapter 1. Star Formation Histories for 5 < z < 7 Galaxies. In: Astrophysical Journal Letters. 2023 ; Vol. 947, No. 2.

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abstract = "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.",

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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

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