Ellipsoidal variability of symbiotic giants

Details Ellipsoidal variability of symbiotic giants Ellipsoidal variability of symbiotic giants

2002-10-22

arxiv.org/abs/astro-ph/0210492v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. To appear in 'Symbiotic stars probing stellar evolution', eds. R.M.L. Corradi, J. Mikolajewska, T. Mahoney

Scientific paper

One of fundamental questions in relation to symbiotic binaries is the process
of mass transfer - Roche lobe overflow or stellar wind - and possibility of an
accretion disc formation. The presence of secondary minima in the quiescent
light curves of YY Her, CI Cyg and BF Cyg apparently due to ellipsoidal changes
of the red giant provides here important clues.

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