Improved Templates for Photometric Redshifts of Submillimeter Sources

摘要: There is growing evidence that some star-forming galaxies at z>1 are characterized by high efficiencies and specific star formation rates. In the local universe, these traits shared ``active'' Blue Compact Dwarf (BCDs) with compact dense regions. The Spectral Energy Distributions (SEDs) of BCDs dominated young massive clusters, embedded in a cocoon dust. this Letter, we incorporate BCD SEDs as templates for two samples high-redshift galaxy populations selected submm wavelengths. Because severe absorption optical light, featureless mid-infrared spectrum, relatively flat radio continuum, dusty star-cluster good approximations to most sources our samples. cases, active fit observed photometric points better than ``standard'' templates, M 82 Arp 220, predict redshifts significantly closer spectroscopic ones. Our results strongly suggest clusters superior other such 220 fitting distant starburst galaxies.