Spitzer Observations of the SCUBA/VLA Sources in the Lockman Hole: Star Formation History of Infrared‐Luminous Galaxies
- 1 September 2004
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal Supplement Series
- Vol. 154 (1) , 130-136
- https://doi.org/10.1086/423322
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' × 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 (LIR > 1011 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.Keywords
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