Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Kovaleva, D."'
Publikováno v:
Astronomy Reports 64 (2020) 756-768
We describe a homogeneous catalog compilation of common proper motion stars based on Gaia DR2. A preliminary list of all pairs of stars within the radius of 100 pc around the Sun with a separation less than a parsec was compiled. Also, a subset of co
Externí odkaz:
http://arxiv.org/abs/2012.06115
We have determined new statistical relations to estimate the fundamental atmospheric parameters of effective temperature and surface gravity, using MK spectral classification, and vice versa. The relations were constructed based on the published cali
Externí odkaz:
http://arxiv.org/abs/2004.07627
Akademický článek
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Akademický článek
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The BDB, Binary star DataBase http://bdb.inasan.ru combines data of the catalogues of binary and multiple stars of all observational types. There is a number of ways for variable stars to form or to be a part of binary or multiple systems. We describ
Externí odkaz:
http://arxiv.org/abs/1806.03162
Autor:
Kovaleva, D. A.1 (AUTHOR) dana@inasan.ru
Publikováno v:
Astronomy Reports. Sep2023, Vol. 67 Issue 9, p938-950. 13p.
Autor:
Gebrehiwot, Y. M., Kovaleva, D. A., Kniazev, A. Y., Malkov, O. Yu., Skvortsov, N. A., Karchevsky, A. V., Tessema, S. B., Zhukov, A. O.
According to theoretical considerations, multiplicity of hierarchical stellar systems can reach, depending on masses and orbital parameters, several hundred, while observational data confirm existence of at most septuple (seven-component) systems. In
Externí odkaz:
http://arxiv.org/abs/1701.01135
Autor:
Malkov, O. Yu., Kovaleva, D. A., Yungelson, L. R., Avvakumova, E. A., Chulkov, D. A., Dluzhnevskaya, O. B., Kniazev, A. Yu
Publikováno v:
Baltic astronomy (2016), Vol. 25, pp. 384-392
We present results of Monte Carlo simulation aiming at the estimate of the frequency of semi-detached Algol-type binaries among the stars observed as single ones. When account is made for various detection biases (mostly due to inclination of orbits)
Externí odkaz:
http://arxiv.org/abs/1701.00746
Publikováno v:
Baltic astronomy (2016), Vol. 25, pp. 419-426
Statistics of orbital parameters of binary stars as well as statistics of their physical characteristics bear traces of star formation history. However, statistical investigations of binaries are complicated by lacking or incomplete observational dat
Externí odkaz:
http://arxiv.org/abs/1701.00421
Publikováno v:
Baltic Astronomy, 24, 367 (2015)
Visual binary stars are the most abundant class of observed binaries. The most comprehensive list of data on visual binaries compiled recently by cross-matching the largest catalogues of visual binaries allowed a statistical investigation of observat
Externí odkaz:
http://arxiv.org/abs/1606.06784