Astron. Astrophys. Suppl. Ser. 134, 327-331

The early type contact binary system V382 Cygni

Ö.L. Degirmenci¹ - C. Sezer¹ - O. Demircan² - A. Erdem³ - S. Özdemir² - H. Ak² - B. Albayrak²

Send offprint request: Ö.L. Degirmenci

1 - Ege University Observatory, Science Faculty, Izmir, Turkey
2 - Ankara University Observatory, Science Faculty, Ankara, Turkey
3 - Department of Physics, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Çanakkale, Turkey

Received March 27; accepted May 26, 1998

Abstract:

New photometric data set of the early type contact binary V382 Cyg have been analyzed with emphasis on determining the photometric mass ratio of the system. The result (q=0.68) supports the value given by Popper & Hill (1991). A study of the system using new data shows a period increase of about 3.28 s per century, which corresponds to a very large rate $\sim 5.0\, 10^{-6}\, {M_\odot/{\rm yr}}$ of mass transfer from the less massive to the more massive component under the conservative mass transfer hypothesis.

Key words: stars: binaries: eclipsing -- stars: individual: V382 Cyg