Orbital period variation study of the low-mass Algol eclipsing binary AI Draconis | ||
NRIAG Journal of Astronomy and Geophysics | ||
Volume 2, Issue 1, June 2013, Pages 21-26 PDF (1.4 M) | ||
DOI: 10.1016/j.nrjag.2013.06.005 | ||
Author | ||
Azza M. Abed | ||
Abstract | ||
Orbital period changes for the Algol-type eclipsing binary AI Dra were studied based on the analysis of its observed times of light minimum. The period variation showed cyclic changes in the interval from JD. ≈ 24 36000 to JD. ≈ 24 47500 and a secular period increase rate (dP/dt = 2.44 × 10 d/year) starting from JD. ≈ 24 48500 up to 24 55262, in a time scale equals to 5 × 10 year. | ||
Keywords | ||
Binaries; Close-binaries; Eclipsing-stars; Individual (AI Dra)-period variation; Magnetic activity-stellar wind | ||
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