2024Sci...384..890H

Query : 2024Sci...384..890H

2024Sci...384..890H - Science, 384, 890-894 (2024/May-0)

Strong damped Lyman-α absorption in young star-forming galaxies at redshifts 9 to 11.

HEINTZ K.E., WATSON D., BRAMMER G., VEJLGAARD S., HUTTER A., STRAIT V.B., MATTHEE J., OESCH P.A., JAKOBSSON P., TANVIR N.R., LAURSEN P., NAIDU R.P., MASON C.A., KILLI M., JUNG I., HSIAO T.Y.-Y., ABDURRO'UF, COE D., ARRABAL HARO P., FINKELSTEIN S.L. and TOFT S.

Abstract (from CDS):

Primordial neutral atomic gas, mostly composed of hydrogen, is the raw material for star formation in galaxies. However, there are few direct constraints on the amount of neutral atomic hydrogen (H I) in galaxies at early cosmic times. We analyzed James Webb Space Telescope (JWST) near-infrared spectroscopy of distant galaxies, at redshifts ≳8. From a sample of 12 galaxies, we identified three that show strong damped Lyman-α absorption due to H I in their local surroundings. The galaxies are located at spectroscopic redshifts of 8.8, 10.2, and 11.4, corresponding to 400 to 600 million years after the Big Bang. They have H I column densities ≳1022 cm-2, which is an order of magnitude higher than expected for a fully neutral intergalactic medium, and constitute a gas-rich population of young star-forming galaxies.

Abstract Copyright: © 2024 American Association for the Advancement of Science. All rights reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER.

Journal keyword(s):

Status at CDS : Examining the need for a new acronym.

Simbad objects: 15

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Number of rows : 15
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 SBSG 0335-052 AGN 03 37 44.06 -05 02 40.2     16.65     ~ 500 1
2 [CZC2013] MACS0647-JD G 06 47 50.0 +70 14 55           ~ 40 0
3 ClG J0647+7015 ClG 06 47 50.0 +70 14 55           ~ 177 0
4 [CZC2013] MACS0647-JD2 LeG 06 47 53.112 +70 14 22.94           ~ 11 0
5 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
6 BoRG 1033+5051 126 G 10 32 44.7144 +50 50 30.072           ~ 7 0
7 Z 219-66 QSO 14 17 01.716 +43 30 13.52   15.6       ~ 181 0
8 [ADF2023] CEERS MSA 80041 G 14 18 55.806 +52 45 29.12           ~ 8 0
9 [ADF2023] CEERS MSA 80026 G 14 19 14.844 +52 44 13.60           ~ 8 0
10 [ADF2023b] MSA ID 10 G 14 19 37.590 +52 56 43.82           ~ 18 0
11 [ADF2023b] MSA ID 64 G 14 19 41.470 +52 54 41.49           ~ 13 0
12 CANDELS EGS F160W J141945.3+525442.4 G 14 19 45.28 +52 54 42.5           ~ 18 0
13 CEERS J141946.36+525632.8 G 14 19 46.350 +52 56 32.82           ~ 38 0
14 CANDELS EGS F160W J142021.5+525758.3 EmG 14 20 21.54 +52 57 58.4           ~ 14 0
15 CANDELS EGS F160W J142052.5+530411.5 EmG 14 20 52.51 +53 04 11.7           ~ 25 0

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