Bright extragalactic ALMA redshift survey (BEARS) III: detailed study of emission lines from 71 Herschel targets
Artikel i vetenskaplig tidskrift, 2023

We analyse the molecular and atomic emission lines of 71 bright Herschel-selected galaxies between redshifts 1.4 and 4.6 detected by the Atacama Large Millimeter/submillimeter Array. These lines include a total of 156 CO, [C i], and H2O emission lines. For 46 galaxies, we detect two transitions of CO lines, and for these galaxies we find gas properties similar to those of other dusty star-forming galaxy (DSFG) samples. A comparison to photodissociation models suggests that most of Herschel-selected galaxies have similar interstellar medium conditions as local infrared-luminous galaxies and high-redshift DSFGs, although with denser gas and more intense far-ultraviolet radiation fields than normal star-forming galaxies. The line luminosities agree with the luminosity scaling relations across five orders of magnitude, although the star formation and gas surface density distributions (i.e. Schmidt-Kennicutt relation) suggest a different star formation phase in our galaxies (and other DSFGs) compared to local and low-redshift gas-rich, normal star-forming systems. The gas-to-dust ratios of these galaxies are similar to Milky Way values, with no apparent redshift evolution. Four of 46 sources appear to have CO line ratios in excess of the expected maximum (thermalized) profile, suggesting a rare phase in the evolution of DSFGs. Finally, we create a deep stacked spectrum over a wide rest-frame frequency (220-890 GHz) that reveals faint transitions from HCN and CH, in line with previous stacking experiments.

submillimetre: galaxies

galaxies: ISM

galaxies: high-redshift

infrared: galaxies

Författare

Masato Hagimoto

Nagoya University

Tom J.L.C. Bakx

National Astronomical Observatory of Japan

Nagoya University

S. Serjeant

Open University

G. J. Bendo

University of Manchester

S. Urquhart

Open University

S. Eales

Cardiff University

K. C. Harrington

European Southern Observatory Santiago

Y. Tamura

Nagoya University

H. Umehata

Nagoya University

S. Berta

Institut de Radioastronomie Millimétrique (IRAM)

A. Cooray

University of California at Irvine (UCI)

P. Cox

Institut d 'Astrophysique de Paris

G. De Zotti

Istituto nazionale di astrofisica (INAF)

M. Lehnert

École Normale Supérieure de Lyon

D. A. Riechers

Universität zu Köln

D. Scott

University of British Columbia (UBC)

P. Temi

NASA Ames Research Center

P. van der Werf

Universiteit Leiden

Chentao Yang

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

A. Amvrosiadis

Durham University

P. Andreani

European Southern Observatory (ESO)

A. J. Baker

University of the Western Cape

Rutgers University

A. Beelen

Centre National d'Etudes Spatiales (CNES)

E. Borsato

Università di Padova

V. Buat

Centre National d'Etudes Spatiales (CNES)

K. M. Butler

Universiteit Leiden

H. Dannerbauer

Universidad de la Laguna

Instituto de Astrofísica de Canarias

L. Dunne

Cardiff University

S. Dye

University of Nottingham

A. F.M. Enia

Universita di Bologna

Istituto nazionale di astrofisica (INAF)

Lulu Fan

University of Science and Technology of China

Deep Space Exploration Laboratory

R. Gavazzi

University of Cambridge

Institut d 'Astrophysique de Paris

J. González-Nuevo

Universidad de Oviedo

Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA)

A. I. Harris

University of Maryland

C. N. Herrera

Institut de Radioastronomie Millimétrique (IRAM)

David H. Hughes

Instituto Nacional de Astrofísica, Óptica y Electrońica

D. Ismail

Centre National d'Etudes Spatiales (CNES)

R. J. Ivison

European Southern Observatory (ESO)

B. M. Jones

Universität zu Köln

K. Kohno

Research Center for the Early Universe

University of Tokyo

M. Krips

Institut de Radioastronomie Millimétrique (IRAM)

G. Lagache

Centre National d'Etudes Spatiales (CNES)

L. Marchetti

University of Cape Town

Istituto nazionale di astrofisica (INAF)

M. Massardi

Istituto nazionale di astrofisica (INAF)

Scuola Internazionale Superiore di Studi Avanzati

H. Messias

Atacama Large Millimeter-submillimeter Array (ALMA)

European Southern Observatory Santiago

M. Negrello

Cardiff University

R. Neri

Institut de Radioastronomie Millimétrique (IRAM)

A.A. Omont

Institut d 'Astrophysique de Paris

I. Perez-Fournon

Universidad de la Laguna

Instituto de Astrofísica de Canarias

C. Sedgwick

Open University

M. W.L. Smith

Cardiff University

F. Stanley

Institut d 'Astrophysique de Paris

A. Verma

University of Oxford

C. Vlahakis

National Radio Astronomy Observatory

B. Ward

Cardiff University

C. Weiner

Open University

A. Weiss

Max-Planck-Gesellschaft

A. J. Young

Rutgers University

Monthly Notices of the Royal Astronomical Society

0035-8711 (ISSN) 1365-2966 (eISSN)

Vol. 521 4 5508-5535

Ämneskategorier

Astronomi, astrofysik och kosmologi

Atom- och molekylfysik och optik

Annan fysik

DOI

10.1093/mnras/stad784

Mer information

Senast uppdaterat

2023-09-15