Bright extragalactic ALMA redshift survey (BEARS) III: detailed study of emission lines from 71 Herschel targets
Journal article, 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
Author
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
University of Cologne
D. Scott
University of British Columbia (UBC)
P. Temi
NASA Ames Research Center
P. van der Werf
Leiden University
Chentao Yang
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
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
University of Padua
V. Buat
Centre National d'Etudes Spatiales (CNES)
K. M. Butler
Leiden University
H. Dannerbauer
University of La Laguna
Instituto de Astrofísica de Canarias
L. Dunne
Cardiff University
S. Dye
University of Nottingham
A. F.M. Enia
University of 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
University of 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
National Institute of Astrophysics, Optics and Electronics
D. Ismail
Centre National d'Etudes Spatiales (CNES)
R. J. Ivison
European Southern Observatory (ESO)
B. M. Jones
University of Cologne
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
University of 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 Society
A. J. Young
Rutgers University
Monthly Notices of the Royal Astronomical Society
0035-8711 (ISSN) 1365-2966 (eISSN)
Vol. 521 4 5508-5535Subject Categories
Astronomy, Astrophysics and Cosmology
Atom and Molecular Physics and Optics
Other Physics Topics
DOI
10.1093/mnras/stad784