Discovery of hyperluminous infrared galaxies using Spitzer and SHARC-II

Details Discovery of hyperluminous infrared galaxies using Spitzer and SHARC-II Discovery of hyperluminous infrared galaxies using Spitzer and SHARC-II

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.577..275b&link_type=abstract

In: Proceedings of the dusty and molecular universe: a prelude to Herschel and ALMA, 27-29 October 2004, Paris, France. Ed. by A

Physics

2

Galaxy Evolution, Galaxy Formation, Starburst Galaxies

Scientific paper

We have used observations taken as part of the Bootes Spitzer GTO program to pre-select high redshift luminous star-forming galaxy candidates. Subsequent ground-based sub-millimeter imaging with SHARC-II at the Caltech Submillimeter Observatory detected several objects, including one particularly exotic one: An extremely bright infrared galaxy with an apparent luminosity in excess of 1013.5Lsolar. It has a spectral energy distribution similar to that of Arp 220, though appears to be at a much higher redshift. Although lensing is one possible explanation, this object has helped refine the selection method, and hints at a way to pre-select similar objects using mid-IR silicate absorption features.

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