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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 607165.0, MPI für Astronomie / Publikationen_mpia
The redshift and nature of AzTEC/COSMOS 1: a starburst galaxy at z = 4.6
Authors:Smolčić, V.; Capak, P.; Ilbert, O.; Blain, A. W.; Salvato, M.; Aretxaga, I.; Schinnerer, E.; Masters, D.; Morić, I.; Riechers, D. A.; Sheth, K.; Aravena, M.; Aussel, H.; Aguirre, J.; Berta, S.; Carilli, C. L.; Civano, F.; Fazio, G.; Huang, J.; Hughes, D.; Kartaltepe, J.; Koekemoer, A. M.; Kneib, J. P.; LeFloc'h, E.; Lutz, D.; McCracken, H.; Mobasher, B.; Murphy, E.; Pozzi, F.; Riguccini, L.; Sanders, D. B.; Sargent, M.; Scott, K. S.; Scoville, N. Z.; Taniguchi, Y.; Thompson, D.; Willott, C.; Wilson, G.; Yun, M.
Date of Publication (YYYY-MM-DD):2011
Journal Abbrev.:The Astrophysical Journal Letters
Volume:731
Issue / Number:2
Audience:Not Specified
Abstract / Description:Based on broadband/narrowband photometry and Keck DEIMOS spectroscopy, we report a redshift of z = 4.64+0.06 -0.08 for AzTEC/COSMOS 1, the brightest submillimeter galaxy (SMG) in the AzTEC/COSMOS field. In addition to the COSMOS-survey X-ray to radio data, we report observations of the source with Herschel/PACS (100, 160 μm), CSO/SHARC II (350 μm), and CARMA and PdBI (3 mm). We do not detect CO(5 → 4) line emission in the covered redshift ranges, 4.56-4.76 (PdBI/CARMA) and 4.94-5.02 (CARMA). If the line is within this bandwidth, this sets 3σ upper limits on the gas mass to lsim8 × 109 M sun and lsim5 × 1010 M sun, respectively (assuming similar conditions as observed in z ~ 2 SMGs). This could be explained by a low
Free Keywords:galaxies: distances and redshifts; galaxies: high-redshift; galaxies: starburst
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2011ApJ...731L..27S
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