AAS 201st Meeting, January, 2003
Session 52. Galaxy Evolution and Surveys: Observations and Interpretation
Poster, Tuesday, January 7, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[52.10] Deep source count surveys at 350\mum: modelling and observation

S.A. Khan (Imperial College London/GSFC/UMd), D.J. Benford, E. Dwek, S.H. Moseley, R.A. Shafer (NASA/GSFC), J.G. Staguhn (SSAI/GSFC)

The arrival of the 2.7 sq. arcmin field-of-view SHARC II bolometer array camera at the Caltech Submillimeter Observatory provides the opportunity to investigate galaxy evolution by means of deep surveys at 350\mum, a previously unexplored waveband. Using an observation strategy determined by source count models - our own and those from the literature - we have begun a highly flexible observational campaign designed to maximise the number of 3\sigma source detections at a flux density limit of or below 15mJy. Such sources are expected to be ultraluminous galaxies (ULIRGs) at a redshift between 1-2, which will complement the studies of SCUBA 850\mum ULIRG sources, with a median redshift of 2.5-3, and the ISO FIRBACK low-redshift normal galaxies. A survey of this kind is able to determine factors such as galaxy evolution and number density of ULIRG galaxies.

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.