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NOEMA redshift measurements of bright Herschel galaxies

Neri, R.; Cox, P.; Omont, A.; Beelen, A.; Berta, S.; Bakx, T.; Lehnert, M.; Baker, A. J.; Buat, V.; Cooray, A.; Dannerbauer, H.; Dunne, L.; Dye, S.; Eales, S.; Gavazzi, R.; Harris, A.L.; Herrera, C.N.; Hughes, D.; Ivison, R.; Jin, S.; Krips, M.; Lagache, G.; Marchetti, L.; Messias, H.; Negrello, M.; Perez-Fournon, I.; Riechers, D.A.; Sarjeant, S.; Urquhart, S.; Vlahakis, C.; Weiss, A.; van der Werf, P.; Yang, C.; Young, A.J.


R. Neri

P. Cox

A. Omont

A. Beelen

S. Berta

T. Bakx

M. Lehnert

A. J. Baker

V. Buat

A. Cooray

H. Dannerbauer

L. Dunne

Associate Professor

S. Eales

R. Gavazzi

A.L. Harris

C.N. Herrera

D. Hughes

R. Ivison

S. Jin

M. Krips

G. Lagache

L. Marchetti

H. Messias

M. Negrello

I. Perez-Fournon

D.A. Riechers

S. Sarjeant

S. Urquhart

C. Vlahakis

A. Weiss

P. van der Werf

C. Yang

A.J. Young



Using the IRAM NOrthern Extended Millimeter Array (NOEMA), we conducted a program to measure redshifts for 13 bright galaxies detected in the Herschel Astrophysical Large Area Survey (H-ATLAS) with S500 _m _ 80 mJy. We report reliable spectroscopic redshifts for 12 individual sources, which are derived from scans of the 3 and 2 mm bands, covering up to 31 GHz in each band, and are based on the detection of at least two emission lines. The spectroscopic redshifts are in the range 2:08 ≤ z ≤ 4:05 with a median value of z = 2:9 _ 0:6. The sources are unresolved or barely resolved on scales of 10 kpc. In one field, two galaxies with different redshifts were detected. In two cases the sources are found to be binary galaxies with projected distances of _140 kpc. The linewidths of the sources are large, with a mean value for the full width at half maximum of 700 _ 300 km s

Journal Article Type Article
Publication Date 2020-03
Journal Astronomy & Astrophysics
Electronic ISSN 1432-0746
Publisher EDP Open
Peer Reviewed Peer Reviewed
Volume 635
Article Number A7
APA6 Citation Neri, R., Cox, P., Omont, A., Beelen, A., Berta, S., Bakx, T., …Young, A. (2020). NOEMA redshift measurements of bright Herschel galaxies. Astronomy and Astrophysics, 635,
Keywords galaxies: high-redshift – galaxies: ISM – gravitational lensing: strong – submillimeter: galaxies – radio lines: ISM
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