The Spitzer IRAC-MIPS Extragalactic Survey: imaging of the South Ecliptic Pole

Details The Spitzer IRAC-MIPS Extragalactic Survey: imaging of the South Ecliptic Pole The Spitzer IRAC-MIPS Extragalactic Survey: imaging of the South Ecliptic Pole

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sptz.prop80039s&link_type=abstract

Spitzer Proposal ID #80039

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Scientific paper

There is one large area - the South Ecliptic Pole (SEP) - that has excellent MIPS coverage but has no accompanying IRAC data. This field is a primary target of far-infrared, sub-millimeter and millimeter telescopes, both from the ground and from space. What makes SEP unique among other fields with comparable area and data coverage is its highly elongated geometry (4:1), which substantially reduces its susceptibility to cosmic variance. In terms of deep photometric coverage over the broadest wavelength range (from far-UV to mm) the SEP field is the largest remaining significant field that is still lacking IRAC imaging. We therefore propose 78 hours of IRAC observations to cover this important region (7 square degrees) to 5-sigma depths of 3.8 and 5.6microJy in channels 1 and 2, respectively. We waive the proprietary period and will provide high quality mosaics as well as band-merged catalogs for use by general community. The proposed IRAC data are critical for determining accurate stellar mass, star-formation histories and redshifts for the sources that can only be identified with observations at longer wavelengths: obscured AGN, dusty ultra-luminous galaxies, and high redshift galaxy clusters. Combining these data with the wealth of UV, optical, infrared, submm, and mm data will allow for an unprecedented investigation of the dusty early universe and will significantly enhance the legacy of the Spitzer mission for years to come.

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