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Spitzer observations of the SCUBA/VLA sources in the Lockman Hole: Star formation history of infrared-luminous galaxies

  • E. Egami
  • , H. Dole
  • , J. S. Huang
  • , P. Pérez-Gonzalez
  • , E. Le Floc'h
  • , C. Papovich
  • , P. Barmby
  • , R. J. Ivison
  • , S. Serjeant
  • , A. Mortier
  • , D. T. Frayer
  • , D. Rigopoulou
  • , G. Lagache
  • , G. H. Rieke
  • , S. P. Willner
  • , A. Alonso-Herrero
  • , L. Bai
  • , C. W. Engelbracht
  • , G. G. Fazio
  • , K. D. Gordon
  • D. C. Hines, K. A. Misselt, S. Miyazaki, J. E. Morrison, M. J. Rieke, J. R. Rigby, G. Wilson

Research output: Contribution to journalArticlepeer-review

Abstract

We present Spitzer Space Telescope imaging observations at 3.6, 4.5, 5.8, 8.0, and 24 μm of the SCUBA submillimeter sources and μJy VLA radio sources in a 5′ x 5′ area in the Lockman Hole East region. Out of the ∼40 SCUBA/VLA sources in the field, Spitzer counterparts were detected for nearly all except for the few low-weight SCUBA detections. We show that the majority (80%-90%) of the detected sources are cold (i.e., starburst-like) infrared-luminous galaxies (L IR > 10 11 L ) at redshift 0.5 < z < 3.5, whose star-formation rate density (SFRD) is comparable to that of the optically selected star-forming galaxies.

Original languageEnglish (US)
Pages (from-to)130-136
Number of pages7
JournalAstrophysical Journal, Supplement Series
Volume154
Issue number1
DOIs
StatePublished - Sep 2004

Keywords

  • Cosmology: observations
  • Galaxies: evolution
  • Galaxies: high-redshift
  • Infrared: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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