BL Eridani: an unstable W Ursae Majoris system with spotted components.

Details BL Eridani: an unstable W Ursae Majoris system with spotted components. BL Eridani: an unstable W Ursae Majoris system with spotted components.

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..118..453l&link_type=abstract

Astronomy and Astrophysics Supplement, v.118, p.453-459

Astronomy and Astrophysics

Astrophysics

4

Stars: Binaries: Close Binaries: Individual: Bl Eri

Scientific paper

New complete BV light curves of BL Eri are presented. Light-curve variability and asymmetry are seen in both B and V bands, and the observed times of light minimum indicate period changes. The light curves have been analyzed by using the light-curve-synthesis method. Our photometric solution reveals that BL Eri is a contact binary with a common convective envelope. An examination of the available photometric and spectroscopic data indicates that the light-curve variability may be due to changes of the component radii and the light-curve asymmetry may be consistent with starspot activity on one or both components.

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