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The Evolutionary Evidence for Most Be Stars Being Paired with Hot White Dwarfs

Published online by Cambridge University Press:  12 April 2016

Natalya V. Raguzova
Natalya V. Raguzova*
Affiliation:
Sternberg Astronomical Institute, Moscow University, Moscow, 119899Russia

Abstract

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Using the “Scenario Machine” we study the number and physical properties of binary Be stars with white dwarfs taking into account cooling of the compact object and discuss the formation of such systems. According to our calculations the number of binary systems containing a Be star paired with a white dwarf in our galaxy is very large − 46% of all Be stars formed as a result of binary evolution must have a white dwarf as companion. These white dwarfs should be very hot with a surface temperature lying in the range from 30,000 to 60,000 K.

Type
7. Interacting Binaries
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 693 - 696
Copyright
Copyright © Astronomical Society of the Pacific 2000

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