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X-ray binary Beta Lyrae and its donor component structure

Published online by Cambridge University Press:  30 December 2019

M. Yu. Skulskyy,
M. V. Vavrukh and
S. V. Smerechynskyi
M. Yu. Skulskyy
Affiliation:
Department of Physics, Lviv Polytechnic National University, Bandera str. 12, 79013, Lviv, Ukraine email: mysky@polynet.lviv.ua
M. V. Vavrukh
Affiliation:
Department of Astrophysics, Ivan Franko National University, Kyryla & Methodiya str. 8, 79005 Lviv, Ukraine emails: mvavrukh@gmail.com, svjatt@gmail.com
S. V. Smerechynskyi
Affiliation:
Department of Astrophysics, Ivan Franko National University, Kyryla & Methodiya str. 8, 79005 Lviv, Ukraine emails: mvavrukh@gmail.com, svjatt@gmail.com
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Abstract

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We show that the structure of magnetized accretion gas flows between the components of the Beta Lyrae system can cause a scattering gas shell that masks completely these components in soft X-ray region. Also we have calculated the inner structure of the donor that is filling a Roche lobe and is preceding a forming of the degenerate dwarf. We show that mass of the degenerate core of the donor is in region 0.3−0.5M⊙.

Keywords

X-rays: binariesstars: Beta Lyraeinteriors

References

Skulskyy, M. Yu. 2015, Science and Education a New Dimension. Natural and Technical Sciences, III(6), 54, 6 Google Scholar
Mourard, D., Broz, M., Nemravova, J. A. et al. 2018, Astron. and Astrophys., 618, A112 CrossRefGoogle Scholar
Mennickent, R. E., Djurasevic, G. 2013, MNRAS, 432, I(1), 799 CrossRefGoogle Scholar
Vavrukh, M. V., Skulskyy, M. Yu., Smerechynskyi, S. V. Models of massive degenerate dwarfs. Lviv: Rastr-7, 2018 (292 p.)Google Scholar