Abstract
Abstract We give a critical assessment of the observational data on flare activity in Algol-type binaries. Special attention is given to the evaluation of the possible accretion component from Roche lobe filling secondaries. A simplified model of a radially expanding stellar wind in a binary system is presented. We investigate the anisotropy effect which is due to the displacement of a sonic point caused by the gravitational field of the companion star. We estimate the X-ray flux for Algol caused by accretion upon the primary component and find satisfactory agreement with X-ray Ginga data for mass transfer rate [Mdot] = 0.4 ÷ 2.0 × 10−11Mθ yr−1. Detailed data in X-ray, radio and optical regions are prerequisite before estimates of comparable accuracy will be feasible for other interacting close binaries.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
