Signatures of Cool Gas Fueling a Star-Forming Galaxy at Redshift 2.3

Author:

Bouché N.12,Murphy M. T.3,Kacprzak G. G.3,Péroux C.4,Contini T.12,Martin C. L.5,Dessauges-Zavadsky M.6

Affiliation:

1. CNRS/IRAP, 14 Avenue E. Belin, F-31400 Toulouse, France.

2. Université de Toulouse/UPS-OMP/IRAP, F-31400 Toulouse, France.

3. Swinburne University of Technology, P.O. Box 218, Hawthorn, Victoria 3122, Australia.

4. Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, 13388 Marseille, France.

5. Department of Physics, University of California, Santa Barbara, CA 93106, USA.

6. Observatory of Geneva, 51 Chemin des Maillettes, CH-1290 Versoix, Switzerland.

Abstract

Cool Accretion Numerical models predict that in order to keep forming stars, galaxies should be continuously replenished with gas from the intergalactic medium. Using data from the Very Large Telescope in Chile, Bouché et al. (p. 50 ) report observations that are consistent with accretion of cold, chemically pristine gas onto a star-forming galaxy at a time when the cosmic star-formation activity was at its peak.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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