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BLAST Observations of the South Ecliptic Pole field: Number Counts and Source Catalogs

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arxiv 1007.3259 v2 pith:NCVOTUBW submitted 2010-07-19 astro-ph.CO

BLAST Observations of the South Ecliptic Pole field: Number Counts and Source Catalogs

classification astro-ph.CO
keywords blastcountsfieldcatalogseclipticlargemapsmeasurements
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present results from a survey carried out by the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) on a 9 deg^2 field near the South Ecliptic Pole at 250, 350 and 500 {\mu}m. The median 1{\sigma} depths of the maps are 36.0, 26.4 and 18.4 mJy, respectively. We apply a statistical method to estimate submillimeter galaxy number counts and find that they are in agreement with other measurements made with the same instrument and with the more recent results from Herschel/SPIRE. Thanks to the large field observed, the new measurements give additional constraints on the bright end of the counts. We identify 132, 89 and 61 sources with S/N>4 at 250, 350, 500 {\mu}m, respectively and provide a multi-wavelength combined catalog of 232 sources with a significance >4{\sigma} in at least one BLAST band. The new BLAST maps and catalogs are available publicly at http://blastexperiment.info.

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