Abstract Details

Name: A VIJAYA
Affiliation: OSMANIA UNIVERSITY
Conference ID: ASI2020_202
Title : Photometric and spectroscopic observations of few Beta Lyrae type binaries
Authors and Co-Authors : Mrs A. Vijaya and Dr.K. Sriram
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : We present the photometric and spectroscopic observations of few Beta Lyrae type binaries observed from JCBT and HCT, IIA in the years 2018 and 2019. We modelled the light curves using WD method and constrain the mass ratio and inclination of the systems. Since these systems are going through mass transfer phase, we performed the period variation studies. Some of them show strong signature of period change of dp/dt ~10^-8 s/yr. Spectroscopic data were collected at different orbital phases for selected systems. In general the H alpha line show strong correlation with orbital period in contact binaries and similar results are observed by us for these Beta Lyrae type systems. We also used Kepler light curves to evaluate the photometric and binary elements.