Study of magnetic activity and period variations of TZ Bootis system

Details Study of magnetic activity and period variations of TZ Bootis system Study of magnetic activity and period variations of TZ Bootis system

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006coska..36...47a&link_type=abstract

Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 36, no. 1, p. 47-57.

Astronomy and Astrophysics

Astronomy

4

Contact Binaries, Period Variation, O'Connell Effect, Magnetic Activity, Tz Boo

Scientific paper

The possibility that the orbital period variation is connected with the light curve changes has been investigated for the contact binary solar--like system TZ Boo. The O'Connell effect and the minimum depth variation have been studied. The results may be through a light on the magnetic activity of the system. The system possesses the O'Connell effect with a cycle of 4.6 years while the depths variation has an 8.1 year cycle. The (O-C) residual variations may be caused by a magnetic activity cycle mechanism, but it remains speculative.

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