FIRST REDSHIFT DETERMINATION OF AN OPTICALLY/ULTRAVIOLET FAINT SUBMILLIMETER GALAXY USING CO EMISSION LINES

Journal Article · Sun Nov 01 04:00:00 EST 2009 · Astrophysical Journal (Online)

DOI:https://doi.org/10.1088/0004-637X/705/1/L45· OSTI ID:21378388

Weiss, A; Menten, K M ^[1]; Ivison, R J; Cirasuolo, M ^[2]; Downes, D ^[3]; Walter, F ^[4]

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1. Max-Planck Institut fuer Radioastronomy, Auf dem Huegel 69, 53121 Bonn (Germany)
2. UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ (United Kingdom)
3. Institut de Radio Astronomie Millimetrique, 300 Rue de la Piscine, Domaine Universitaire, 38406 Saint Martin d'Heres (France)
4. MPIA, Koenigstuhl 17, 69117 Heidelberg (Germany)

We report the redshift of a distant, highly obscured submillimeter galaxy (SMG), based entirely on the detection of its CO line emission. We have used the newly commissioned Eight MIxer Receiver at the IRAM 30 m telescope, with its 8 GHz of instantaneous dual-polarization bandwidth, to search the 3 mm atmospheric window for CO emission from SMM J14009+0252, a bright SMG detected in SCUBA Lens Survey. A detection of the CO(3-2) line in the 3 mm window was confirmed via observations of CO(5-4) in the 2 mm window. Both lines constrain the redshift of SMM J14009+0252 to z = 2.9344, with high precision (deltaz = 2 x 10{sup -4}). Such observations will become routine in determining redshifts in the era of ALMA.

• OSTI ID: 21378388
• Journal Information: Astrophysical Journal (Online), Journal Name: Astrophysical Journal (Online) Journal Issue: 1 Vol. 705; ISSN 1538-4357
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
COSMOLOGY
ELECTROMAGNETIC RADIATION
EMISSION
EVOLUTION
GALACTIC EVOLUTION
GALAXIES
POLARIZATION
RADIATIONS
RED SHIFT
TELESCOPES
ULTRAVIOLET RADIATION