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The Hot Stellar Component in Elliptical Galaxies and Spiral Bulges

Published online by Cambridge University Press:  07 August 2017

Henry C. Ferguson ,
Arthur F. Davidsen  and
Gerard A. Kriss
Henry C. Ferguson
Affiliation:
University of Cambridge, Institute of Astronomy
Arthur F. Davidsen
Affiliation:
Center for Astrophysical Sciences, The Johns Hopkins University
Gerard A. Kriss
Affiliation:
Center for Astrophysical Sciences, The Johns Hopkins University

Abstract

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Suggestions for the source of the ultraviolet flux in elliptical galaxies and spiral bulges include young stars, post-asymptotic-giant-branch (PAGB) stars, hot-horizontal-branch stars, and accreting white dwarfs. Each candidate has different implications for the spectral evolution of galaxies. We review current understanding of the origin of the far-UV flux, with emphasis on recent results from the Hopkins Ultraviolet Telescope (HUT), flown on the Astro-1 space-shuttle mission in December 1990.

Type
III. The Stellar Populations of Non-Resolved Galaxies
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 291 - 295
Copyright
Copyright © Kluwer 

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