Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913
Artikel i vetenskaplig tidskrift, 2022

The phase transition between galaxies and quasars is often identified with the rare population of hyper-luminous, hot dust-obscured galaxies. Galaxy formation models predict these systems to grow via mergers, that can deliver large amounts of gas toward their centers, induce intense bursts of star formation and feed their supermassive black holes. Here we report the detection of 24 galaxies emitting Lyman-α emission on projected physical scales of about 400 kpc around the hyper-luminous hot dust-obscured galaxy W0410-0913, at redshift z = 3.631, using Very Large Telescope observations. While this indicates that W0410-0913 evolves in a very dense environment, we do not find clear signs of mergers that could sustain its growth. Data suggest that if mergers occurred, as models expect, these would involve less massive satellites, with only a moderate impact on the internal interstellar medium of W0410-0913, which is sustained by a rotationally-supported fast-rotating molecular disk, as Atacama Large Millimeter Array observations suggest.

Författare

M. Ginolfi

European Southern Observatory (ESO)

E. Piconcelli

Osservatorio Astronomico di Roma

L. Zappacosta

Osservatorio Astronomico di Roma

G. C. Jones

University of Oxford

University of Cambridge

L. Pentericci

Osservatorio Astronomico di Roma

R. Maiolino

University of Cambridge

A. Travascio

Universita' degli Studi di Milano-Bicocca

N. Menci

Osservatorio Astronomico di Roma

S. Carniani

Scuola Normale Superiore di Pisa

F. Rizzo

Cosmic Dawn Center (DAWN)

Niels Bohr Institute

F. Arrigoni Battaia

Max-Planck-Gesellschaft

S. Cantalupo

Universita' degli Studi di Milano-Bicocca

C. De Breuck

European Southern Observatory (ESO)

L. Graziani

Sapienza, Università di Roma

Kirsten Kraiberg Knudsen

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

P. Laursen

Niels Bohr Institute

Cosmic Dawn Center (DAWN)

V. Mainieri

European Southern Observatory (ESO)

R. Schneider

Sapienza, Università di Roma

F. Stanley

Sorbonne Université

R. Valiante

Osservatorio Astronomico di Roma

A. Verhamme

Université de Genève

Nature Communications

2041-1723 (ISSN) 20411723 (eISSN)

Vol. 13 1 4574

Ämneskategorier

Meteorologi och atmosfärforskning

Astronomi, astrofysik och kosmologi

Annan geovetenskap och miljövetenskap

DOI

10.1038/s41467-022-32297-x

PubMed

35931777

Mer information

Senast uppdaterat

2022-11-21