The Hubble Deep Field in the Far Ultraviolet

Abstract

Results from a recent HST survey of field galaxies at wavelengths 1600 Angstroms and 2400 Angstroms are be presented. The data are used to constrain the fraction of Lyman-continuum radiation that escapes from galaxies at redshifts z ~ 1. The combined UV-IR photometry for HDF galaxies is also used to investigate whether low-mass starburst galaxies dominate the field-galaxy population at redshift z ~1. The relative lack of objects with the colors of faded bursts suggests that star-formation is largly quiescent rather than bursty or episodic.Comment: Presented at the ESO/ECF/STScI Workshop on Deep Fields, October 2000. 7 pages, 3 figure