Deep Spitzer Observations of High Redshift SMG Candidates

Details Deep Spitzer Observations of High Redshift SMG Candidates Deep Spitzer Observations of High Redshift SMG Candidates

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541208d&link_type=abstract

American Astronomical Society, AAS Meeting #215, #412.08; Bulletin of the American Astronomical Society, Vol. 42, p.247

Astronomy and Astrophysics

Astronomy

Scientific paper

Observation of bright 1.1 mm AzTEC/COSMOS sources with the Sub-Millimeter Array (SMA) has enabled us to unambiguously identify 15 high S/N Submillimeter Galaxies (SMGs) at 890 µm as single, compact point sources with subarcsecond position accuracy ( 0.2 arcsec). Ten of the sample SMGs exhibit radio, mid-IR, and near-IR properties that are consistent with being high-redshift (z > 3) candidates. With the Spitzer Space Telescope we performed deep ( 50h) 16 and 24 µm imagings for four of these sources. Combined with multi-wavelength data, we constructed the SEDs for these four AzTEC/SMA sources and were able to derive the photometric redshifts of these galaxy candidates. Detection of 24 µm fluxes also permitted study of the hot dust properties of the SMGs. This research is made possible with the support of the SAO Pre-doctoral Program.

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