Radio and mid-infrared identification of blast source counterparts in the chandra deep field south

Simon Dye, Peter A.R. Ade, James J. Bock, Edward L. Chapin, Mark J. Devlin, James S. Dunlop, Stephen A. Eales, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Peter C. Hargrave, David H. Hughes, Jeff Klein, Benjamin Magnelli, Gaelen Marsden, Philip Mauskopf, Lorenzo Moncelsi, Calvin B. Netterfield, Luca Olmi, Enzo PascaleGuillaume Patanchon, Marie Rex, Douglas Scott, Christopher Semisch, Tom Targett, Nicholas Thomas, Matthew D.P. Truch, Carole Tucker, Gregory S. Tucker, Marco P. Viero, Donald V. Wiebe

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


We have identified radio and/or mid-infrared counterparts to 198 out of 350 sources detected at ≥5σ over ∼9deg2 centered on the Chandra Deep Field South by the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) at 250, 350, and 500 μm. We have matched 114 of these counterparts to optical sources with previously derived photometric redshifts and fitted spectral energy distributions to the BLAST fluxes and fluxes at 70 and 160 μm acquired with the Spitzer Space Telescope. In this way, we have constrained dust temperatures, total far-infrared/submillimeter luminosities, and star formation rates for each source. Our findings show that, on average, the BLAST sources lie at significantly lower redshifts and have significantly lower rest-frame dust temperatures compared to submillimeter sources detected in surveys conducted at 850 μm. We demonstrate that an apparent increase in dust temperature with redshift in our sample arises as a result of selection effects. Finally, we provide the full multiwavelength catalog of ≥5σ BLAST sources contained within the complete ∼9 deg2 survey area.

Original languageEnglish (US)
Pages (from-to)285-299
Number of pages15
JournalAstrophysical Journal
Issue number1
StatePublished - 2009
Externally publishedYes


  • Cosmology: Observations
  • Galaxies: High-redshift
  • Infrared: Galaxies
  • Submillimeter
  • Surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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