Period Changes of Contact Binaries in OGLE Database

• Autorzy: Kubiak M. , Udalski A. , Szymański M. K.
• Języki publikacji: EN

Abstrakty

EN

Presented are results of determination of secular period changes for 569 contact binaries from the OGLE database with periods shorter than about one day and observations spanning 14 observing seasons. The statistically significant rates of secular changes found for 134 stars are distributed nearly symmetrically around zero with a half-width of the distribution equal to about 3.5×10^-7 day/year. The remaining rates are confined within the error distribution with dispersion about 2.3×10^-7 day/year. The largest rates of period change that have been found are of the order of 5×10^-6 day/year.

Słowa kluczowe

EN

binaries: close; binaries: eclipsing

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2006
• Tom: Vol. 56, No. 3
• Strony: 253--265
• Opis fizyczny: Bibliogr. 9 poz., tab., wykr.

Twórcy

autor

Kubiak M.

• Warsaw University Observatory, al. Ujazdowskie 4, 00-478 Warsaw, Poland

autor

Udalski A.

• Warsaw University Observatory, al. Ujazdowskie 4, 00-478 Warsaw, Poland

autor

Szymański M. K.

• Warsaw University Observatory, al. Ujazdowskie 4, 00-478 Warsaw, Poland

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