Hot Subdwarfs in Binaries as the Source of the Far-UV Excess in Elliptical Galaxies

The excess of far-ultraviolet (far-UV) radiation in elliptical galaxies has remained one of their most enduring puzzles. In contrast, the origin of old blue stars in the Milky Way, hot subdwarfs, is now reasonably well understood: they are hot stars that have lost their hydrogen envelopes by various...

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Bibliographic Details
Main Authors: Podsiadlowski, P, Han, Z, Lynas-Gray, A, Brown, D
Format: Conference item
Published: 2008