Deep UV photometry of galaxies & the extragalactic UV background

Details Deep UV photometry of galaxies & the extragalactic UV background Deep UV photometry of galaxies & the extragalactic UV background

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..408...73m&link_type=abstract

The ultraviolet universe at low and high redshift. AIP Conference Proceedings, Volume 408, pp. 73-82 (1997).

Computer Science

1

Characteristics And Properties Of External Galaxies And Extragalactic Objects, Background Radiations, Ultraviolet

Scientific paper

We have performed multifiber spectroscopy of UV-selected galaxies obtained by the balloon-borne FOCA telescope. 55 galaxies were found in 0.25 square degrees. The number-magnitude, redshift, and color distributions show that strong evolution is occurring in the UV-selected population. A mildly luminosity-dependent model normalized to the star formation history derived from optical surveys is a good fit to the distribution. Keck spectroscopy reveals that galaxies in the high-redshift tail are both dwarfs and giants, including ``giant starburst'' galaxies. One third of these high-redshift galaxies have companions inside 100 kpc consistent with being dynamically bound. The results are consistent with current limits on the extragalactic UV background.

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