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Rapid Mass Accretion on a Fully Convective Star

Published online by Cambridge University Press:  12 April 2016

M.J. Sarna  and
J. Ziólkowski
M.J. Sarna
Affiliation:
N. Copernicus Astronomical Center, Polish Academy of Sciences, Warszawa, Poland
J. Ziólkowski
Affiliation:
N. Copernicus Astronomical Center, Polish Academy of Sciences, Warszawa, Poland

Abstract

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We investigated the effects of rapid mass accretion on a fully convective main sequence star of 0.3 M⊙, taking into account the heating of its photosphere by the kinetic energy of the infalling matter. We found that the star develops highly inhomogeneous structure consisting of almost unperturbed initial convective core and a radiative envelope composed of the accreted matter. Both regions are separated by a very stable temperature inversion layer. Due to such structure accreting convective star may significantly increase its radius (contrary to earlier suggestions).

Type
VII. Related Objects
Information
International Astronomical Union Colloquium , Volume 93: Cataclysmic Variables: Recent Multi-Frequency Observations and Theoretical Developments , 1987 , pp. 671 - 674
Copyright
Copyright © Reidel 1987

References

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