Photometric analysis of the eclipsing binary star AI Draconis
ASTRONOMY & ASTROPHYSICS, cilt.363, sa.1, ss.244-252, 2000 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 363 Sayı: 1
- Basım Tarihi: 2000
- Dergi Adı: ASTRONOMY & ASTROPHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.244-252
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet
Özet
New photometric data from the eclipsing binary star AI Draconis has been analyzed with the method of Wilson-Devinney. The system shows a period increase of about 0.91 sec per century, which corresponds to amass transfer from the less to the more massive component at a rate of 7.5 10(-7) M./yr under the conservative mass transfer hypothesis. We also suggest that the system has an unseen component which orbits around the mass center of the triplet system with a period of about 23 yrs. We found that the projectional angular separation between the third star and eclipsing pair varies from 0." 048 to 0." 235. These results suggestive of a third body should be checked in the future with more sensitive observations.