2023ApJ...947L..27D

Query : 2023ApJ...947L..27D

2023ApJ...947L..27D - Astrophys. J., 947, L27 (2023/April-3)

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

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., WANG X., MISSELT K., STARK D.P. and WILLMER C.

Abstract (from CDS):

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.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxies - Galaxy evolution - High-redshift galaxies

Nomenclature: Table 1: [DVT2023] NNNN N=34 among (Nos 483-6324).

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [DVT2023] 4026 G? 00 13 52.80 -30 18 21.8           ~ 1 0
2 [DVT2023] 3824 G? 00 13 53.63 -30 18 09.7           ~ 1 0
3 [DVT2023] 5879 G? 00 13 54.26 -30 18 51.8           ~ 1 0
4 [DVT2023] 5429 G? 00 13 58.11 -30 19 03.9           ~ 1 0
5 [DVT2023] 4761 G? 00 13 58.16 -30 19 23.5           ~ 1 0
6 [DVT2023] 2006 G? 00 13 59.17 -30 21 23.8           ~ 1 0
7 [DVT2023] 4455 G? 00 14 00.00 -30 19 10.3           ~ 1 0
8 [DVT2023] 2993 G? 00 14 00.58 -30 20 40.8           ~ 1 0
9 [DVT2023] 5394 G? 00 14 00.89 -30 19 04.7           ~ 1 0
10 [DVT2023] 3665 G? 00 14 00.96 -30 18 00.8           ~ 1 0
11 [DVT2023] 3459 G? 00 14 01.05 -30 17 41.7           ~ 1 0
12 [DVT2023] 733 G? 00 14 01.51 -30 22 12.6           ~ 1 0
13 [DVT2023] 1105 G? 00 14 01.61 -30 21 58.6           ~ 1 0
14 [DVT2023] 6324 G? 00 14 01.78 -30 18 13.3           ~ 1 0
15 [DVT2023] 4736 G? 00 14 02.01 -30 19 22.6           ~ 1 0
16 [DVT2023] 4144 G? 00 14 02.29 -30 18 31.9           ~ 1 0
17 [DVT2023] 1127 G? 00 14 02.43 -30 21 57.6           ~ 1 0
18 [DVT2023] 3918 G? 00 14 02.51 -30 18 15.2           ~ 1 0
19 [DVT2023] 4587 G? 00 14 02.65 -30 19 16.2           ~ 1 0
20 [DVT2023] 2838 G 00 14 02.83 -30 20 48.6           ~ 4 0
21 [DVT2023] 2104 G? 00 14 02.85 -30 21 19.3           ~ 1 0
22 [DVT2023] 6155 G? 00 14 02.99 -30 18 47.8           ~ 1 0
23 [DVT2023] 2850 G? 00 14 03.02 -30 20 49.0           ~ 1 0
24 [DVT2023] 1423 G? 00 14 03.29 -30 21 46.7           ~ 1 0
25 [DVT2023] 2872 G? 00 14 03.49 -30 20 51.0           ~ 1 0
26 [DVT2023] 2827 G? 00 14 03.49 -30 20 51.0           ~ 1 0
27 [DVT2023] 1356 G? 00 14 04.14 -30 21 48.7           ~ 1 0
28 [DVT2023] 1663 G? 00 14 04.39 -30 21 38.5           ~ 1 0
29 [DVT2023] 2626 G? 00 14 04.50 -30 20 58.6           ~ 1 0
30 [DVT2023] 2199 G? 00 14 04.77 -30 21 14.8           ~ 1 0
31 [DVT2023] 680 G? 00 14 05.63 -30 22 14.9           ~ 1 0
32 [DVT2023] 483 G? 00 14 05.72 -30 22 22.5           ~ 1 0
33 [DVT2023] 2864 G? 00 14 05.89 -30 20 47.9           ~ 1 0
34 [DVT2023] 2321 G? 00 14 06.58 -30 21 18.2           ~ 1 0
35 ACO 2744 ClG 00 14 20.03 -30 23 17.8           ~ 1077 0

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