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The brighter side of sub-mm source counts: a SCUBA scan-map of the Hubble Deep Field

Authors
  • Borys, Colin
  • Chapman, Scott
  • Halpern, Mark
  • Scott, Douglas
Type
Preprint
Publication Date
Sep 09, 2000
Submission Date
Sep 09, 2000
Identifiers
arXiv ID: astro-ph/0009143
Source
arXiv
License
Unknown
External links

Abstract

We present an 11 X 11 arcminute map centred on the Hubble Deep Field taken at 850 microns with the SCUBA camera on the JCMT. The map has an average one-sigma sensitivity to point sources of about 2.3 mJy and thus probes the brighter end of the sub-mm source counts. We find 7 sources with a flux greater than 9 mJy (roughly 4 sigma), and therefore estimate N(>9 mJy)= 208 (+90/-72) per degree. This result is consistent with work from other groups, but improves the statistics at the bright end, and is suggestive of a steepening of the counts.

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