Physical Sciences and Mathematics Commons^™

Radio-To-Far-Infrared Spectral Energy Distribution And Photometric Redshifts For Dusty Starburst Galaxies, Min Yun, Clc Carilli

Astronomy Department Faculty Publication Series

As a logical next step in improving the radio-to-submillimeter spectral index as a redshift indicator, we have investigated a technique of using the entire radio-to-far-infrared spectral energy distribution (SED) for deriving photometric redshifts for dusty starburst galaxies at high redshift. A dusty starburst SED template is developed from the theoretical understanding of various emission mechanisms related to massive star formation processes, and the template parameters are selected by examining the observed properties of 23 IR-selected starburst galaxies: T_d = 58 K, β = 1.35, and f_nth = 1. The major improvement in using this template SED for deriving …