The 2 : 3 period ratio in the light curve of EX Hydrae
Open Access
- 1 January 1980
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 190 (1) , 13P-16P
- https://doi.org/10.1093/mnras/190.1.13p
Abstract
We show that the photometric variation in EX Hydrae with a period slightly longer than two-thirds of the orbital period can be explained by variability in the mass transfer rate caused by pulsation of the lobe-filling secondary. We argue that the pulsation is a toroidal mode which can be excited by a parametric instability if the orbit is slightly eccentric.Keywords
This publication has 0 references indexed in Scilit: