SIMBAD references

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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