Gas filaments of the cosmic web located around active galaxies in a protocluster.
Journal
Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511
Informations de publication
Date de publication:
04 10 2019
04 10 2019
Historique:
received:
24
01
2019
accepted:
02
09
2019
entrez:
12
10
2019
pubmed:
12
10
2019
medline:
12
10
2019
Statut:
ppublish
Résumé
Cosmological simulations predict that the Universe contains a network of intergalactic gas filaments, within which galaxies form and evolve. However, the faintness of any emission from these filaments has limited tests of this prediction. We report the detection of rest-frame ultraviolet Lyman-α radiation from multiple filaments extending more than one megaparsec between galaxies within the SSA22 protocluster at a redshift of 3.1. Intense star formation and supermassive black-hole activity is occurring within the galaxies embedded in these structures, which are the likely sources of the elevated ionizing radiation powering the observed Lyman-α emission. Our observations map the gas in filamentary structures of the type thought to fuel the growth of galaxies and black holes in massive protoclusters.
Identifiants
pubmed: 31604308
pii: 366/6461/97
doi: 10.1126/science.aaw5949
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
97-100Subventions
Organisme : Swiss National Science Foundation
Pays : Switzerland
Organisme : European Research Council
Pays : International
Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.