PREDICTION OF THE COMPONENTS MASS RATIOS AND THE SPECTRAL CLASSES OF THE MAIN COMPONENT FOR W UMa-TYPE ECLIPSING VARIABLE STARS
DOI:
https://doi.org/10.18524/1810-4215.1996.9.109064Ключові слова:
Stars, Binaries, Contact, Component mass ratios, ZET methodАнотація
The new approach to estimation of components mass ratios for close binary systems is suggested. 225 unknown from spectroscopic observations magnitudes of mass ratios for W UMa-type contact binaries are restored by statistical method ZET. 204 magnitudes of the spectral classes of the main component for this type systems are defined by analogous way. The evolutionary types of some stars are specified as a matter of record. ZET-method efficiency for predict these characteristics of W UMa-type contact systems is shown.
Посилання
Svechnikov M.A.: 1986, A Cataloge of orbital elements, masses and luminosities of close double stars (in Russian), Irkutsk, Irkutsk University, 225
Svechnikov M.A., lstomin L.F., Grekhova O.A.: 1980, Peremennye zvezdy, 21, N3. 399
Svechnikov M.A., Kuznetsova E.F.: 1990, A Catalogue of approximate photometric and absolute elements of eclipsing variable stars.(in Russian),Sverdlovsk: Ural University, 1, 224, 2, 232
Webbink P.E: 1991, A Catalogue of potentially bright close binary gravitational wave sources. Department of Astronomy University of Illinois Urbana, Illinois. 61801.
Zagoruiko N.G., Elkina V.N., Lbov G.S.: 1985, Algorithms of finding the empiric regularities. (in Russian),Novosibirsk, Nauka Publ., 110
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