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An Unsuccessful Search for White Dwarf Companions to Nearby Main Sequence Stars

Published online by Cambridge University Press:  12 April 2016

Harry L. Shipman  and
Jeanne Geczi
Harry L. Shipman
Affiliation:
Physics and Astronomy Department, University of Delaware Newark, Delaware 19716
Jeanne Geczi
Affiliation:
Physics and Astronomy Department, University of Delaware Newark, Delaware 19716

Abstract

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Many of the nearest white dwarf stars (e.g., Sirius B and Procyon B) are in such binaries and would have remained undiscovered if they were even a little bit further away. White dwarfs which are sufficiently hot (T(eff) > 10,000 K) would, if present in binary systems with a relatively cool (F, G, K, or M) main–sequence secondary, be visible in IUE images as a hot companion to the main sequence star. We systematically examined 318 IUE images of 280 different G, K, and M stars which had been observed for other purposes. No previously undiscovered white dwarf stars were found.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 114: White Dwarfs , 1989 , pp. 134 - 137
Copyright
Copyright © Springer-Verlag 1989

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