Spitzer Observations of the SCUBA/VLA Sources in the Lockman Hole: Star Formation History of Infrared-Luminous Galaxies Academic Article uri icon

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.

author list (cited authors)

  • Egami, E., Dole, H., Huang, J., Pérez-Gonzalez, P., Le Floc’h, E., Papovich, C., ... Wilson, G.

citation count

  • 98

publication date

  • September 2004