RZ Cassiopeia: Eclipsing Binary with Pulsating Component

Details RZ Cassiopeia: Eclipsing Binary with Pulsating Component RZ Cassiopeia: Eclipsing Binary with Pulsating Component

2007-12-12

arxiv.org/abs/0712.1983v1

Astronomy and Astrophysics

Astrophysics

Published in Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposiu

Scientific paper

We report time-resolved VR-band CCD photometry of the eclipsing binary RZ Cas obtained with 38-cm Cassegrain telescope at the Crimean Astrophysical Observatory during July 2004 - October 2005. Obtained lightcurves clearly demonstrates rapid pulsations with the period about 22 minutes. Periodogram analysis of such oscillations also is reported. On the 12, January, 2005 we observed rapid variability with higher amplitude (~0.^m 1) that, perhaps, may be interpreted as high-mass-transfer-rate event and inhomogeneity of accretion stream. Follow-up observations (both, photometric and spectroscopic) of RZ Cas are strictly desirable for more detailed study of such event.

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