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Rapid mass accretion on a fully convective star

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Abstract

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).

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References

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Authors and Affiliations

  1. N. Copernicus Astronomical Center, Polish Academy of Sciences, Warszawa, Poland

    M. J. Sarna & J. Ziólkowski

Authors
  1. M. J. Sarna
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  2. J. Ziólkowski
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Sarna, M.J., Ziólkowski, J. Rapid mass accretion on a fully convective star. Astrophys Space Sci 131, 671–674 (1987). https://doi.org/10.1007/BF00668155

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  • DOI: https://doi.org/10.1007/BF00668155

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