ESTIMATING SPATIAL DENSITY OF CLOSE BINARY SYSTEMS WITH SUB GIANT SECONDARIES IN SOLAR NEIGHBORHOOD

Автор(и)

  • O. V. Eretnova Department of Physics, Chelyabinsk State University ul Br.Kashirinikh, 129, Chelyabinsk 454136 Russia, Російська Федерація

DOI:

https://doi.org/10.18524/1810-4215.1994.7.105734

Ключові слова:

Close binary systems, Effects of observational selection, Spatial density.

Анотація

The spatial density of close binary systems with subgiant secondaries in solar neighborhood are evaluated taking into account the effects of observational selection. It was found to be about 0.00018 pc- 3 or about 0.00035 M pc-3.

Посилання

Allen K.U.: 1977, Astrophysical magnitudes., (Russian Transl.), Moscow, Mir, 446pp.

Eretnova O.V., Svechnikov M.A.: 1991, Astronomo-geodez. issled., Sverdlovsk, 87.

Eretnova O.V., Svechnikov M.A.: 1993, Astronomo-geodez. issled., Sverdlovsk, (in press).

Svechnikov M.A., Kuznetsova E.F.: 1990, A catalogue of approximate photometric and absolute elements of eclipsing variable stars. Sverdlovsk. Ural State University, V.I., 224pp.; v.2, 232pp.

Svechnikov M.A., Kuznetsova E.F.: 1992, Astronomo-geodez. issled., Sverdlovsk, 81.

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2017-07-01

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