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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

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Astronomy: Faculty Publications

2008

Galaxies: starburst

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

An Aztec 1.1 Mm Survey Of The Goods-N Field - I. Maps, Catalogue And Source Statistics, T. A. Perera, E. L. Chapin, J. E. Austermann, K. S. Scott, G. W. Wilson, M. Halpern, A. Pope, D. Scott, M. S. Yun, James D. Lowenthal, G. Morrison, I. Aretxaga, J. J. Bock, K. Coppin, M. Crowe, L. Frey, D. H. Hughes, Y. Kang, S. Kim, P. D. Mauskopf Dec 2008

An Aztec 1.1 Mm Survey Of The Goods-N Field - I. Maps, Catalogue And Source Statistics, T. A. Perera, E. L. Chapin, J. E. Austermann, K. S. Scott, G. W. Wilson, M. Halpern, A. Pope, D. Scott, M. S. Yun, James D. Lowenthal, G. Morrison, I. Aretxaga, J. J. Bock, K. Coppin, M. Crowe, L. Frey, D. H. Hughes, Y. Kang, S. Kim, P. D. Mauskopf

Astronomy: Faculty Publications

We have conducted a deep and uniform 1.1 mm survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field with AzTEC on the James Clerk Maxwell Telescope. Here, we present the first results from this survey including maps, the source catalogue and 1.1 mm number counts. The results presented here were obtained from a 245 arcmin region with a near uniform coverage to a depth of 0.96-1.16 mJy beam . Our robust catalogue contains 28 source candidates detected with S/N ≥ 3.75, only ∼1- 2 of which are expected to be spurious detections. Of these source candidates, eight are also …


SPitzer Irac Infrared Colours Of Submillimetre-Bright Galaxies, Min S. Yun, Itziar Aretxaga, Matthew L.N. Ashby, Jason Austermann, Giovanni G. Fazio, Mauro Giavalisco, Jia Sheng Huang, David H. Hughes, Sungeun Kim, James D. Lowenthal, Thushara Perera, Kim Scott, Grant Wilson, Joshua D. Younger Sep 2008

SPitzer Irac Infrared Colours Of Submillimetre-Bright Galaxies, Min S. Yun, Itziar Aretxaga, Matthew L.N. Ashby, Jason Austermann, Giovanni G. Fazio, Mauro Giavalisco, Jia Sheng Huang, David H. Hughes, Sungeun Kim, James D. Lowenthal, Thushara Perera, Kim Scott, Grant Wilson, Joshua D. Younger

Astronomy: Faculty Publications

High-redshift submillimetre-bright galaxies identified by blank field surveys at millimetre and submillimetre wavelengths appear in the region of the Infra Red Array Camera (IRAC) colour-colour diagrams previously identified as the domain of luminous active galactic nuclei (AGNs). Our analysis using a set of empirical and theoretical dusty starburst spectral energy distribution (SED) models shows that power-law continuum sources associated with hot dust heated by young (≲100 Myr old), extreme starbursts at z > 2 also occupy the same general area as AGNs in the IRAC colour-colour plots. A detailed comparison of the IRAC colours and SEDs demonstrates that the two populations …