The eclipsing binary star RZ Cas: accretion-driven variability of the multimode oscillation spectrum

E. Mkrtichian, D.; Lehmann, H.; Rodrı́guez, E.; C. Olson, E.; Kim, S-L; V. Kusakin, A.; Wook Lee, Jae; Youn, J-H; Kwon, S-G; J. López‐González, M.; B. Janiashvili, E.; K. Tiwari, S.; Joshi, Santosh; Lampens, P.; van Cauteren, P.; V. Glazunova, L.; Yu. Gamarova, A.; N. Grankin, K.; Rovithis-Livaniou, Eleni; Svoboda, Petr; Uhlář, R.; V. Tsymbal, V.; I. Kokumbaeva, R.; Urushadze, T.; S. Kuratov, K.; Shin, H-C; Kang, Y-W; Soonthornthum, Boonrucksar

doi:10.1093/mnras/stx2841

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The eclipsing binary star RZ Cas: accretion-driven variability of the multimode oscillation spectrum

Published in Monthly Notices of the Royal Astronomical Society • Nov 3, 2017

Authors:

D. E. Mkrtichian

H. Lehmann

E. Rodrı́guez

Abstract

We analysed photometric time series of the active, semidetached Algol-type system RZ Cas obtained in 1999-2009, in order to search for seasonal and short-term variations in the oscillation spectrum of RZ Cas A. The orbital period shows ±1 s cyclic variations on time-scales of 6-9 years. We detected ...

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Physics

Astrophysics

Amplitude

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