Molecular gas in the halo fuels the growth of a massive cluster galaxy at high redshift

Bibcode
2016Sci...354.1128E
DOI
10.1126/science.aag0512
Emonts, B. H. C.; Lehnert, M. D.; Villar-Martín, M.; Norris, R. P.; Ekers, R. D.; van Moorsel, G. A.; Dannerbauer, H.; Pentericci, L.; Miley, G. K.; Allison, J. R.; Sadler, E. M.; Guillard, P.; Carilli, C. L.; Mao, M. Y.; Röttgering, H. J. A.; De Breuck, C.; Seymour, N.; Gullberg, B.; Ceverino, D.; Jagannathan, P.; Vernet, J.; Indermuehle, B. T.
Referencia bibliográfica

Science, Volume 354, Issue 6316, pp. 1128-1130 (2016).

Fecha de publicación:
12
2016
Revista
Science
Número de autores
22
Número de autores del IAC
1
Número de citas
90
Número de citas referidas
83
Descripción
The largest galaxies in the universe reside in galaxy clusters. Using sensitive observations of carbon monoxide, we show that the Spiderweb galaxy—a massive galaxy in a distant protocluster—is forming from a large reservoir of molecular gas. Most of this molecular gas lies between the protocluster galaxies and has low velocity dispersion, indicating that it is part of an enriched intergalactic medium. This may constitute the reservoir of gas that fuels the widespread star formation seen in earlier ultraviolet observations of the Spiderweb galaxy. Our results support the notion that giant galaxies in clusters formed from extended regions of recycled gas at high redshift.
Tipo
Con árbitro

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