Abstract Details

Name: VIJAYA A
Affiliation: OSMANIA UNIVERSITY
Conference ID: ASI2021_317
Title : Photometric and spectroscopic observations of few Selected Beta Lyrae type binaries
Authors and Co-Authors : A.Vijaya(Department of Astronomy,Osmania University,Hyderabad,500007) and K.Sriram(Department of Astronomy,Osmania University,Hyderabad,500007).
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : We present the phtometric solutions of few Selected Beta Lyrae type binaries uisng the ASAS and TESS data. We modelled the light curves using WD method and constrain the various paramteres including 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 the order of dp/dt ~10^(-8) s/yr. Spectroscopic observations of these Beta Lyare type binaries were performed from VBT, IIA during the years 2018 and 2019. We calcualted the Ews of H alpha line of these systems and correlated with orbital period and mass ratio. Overall, the evolution of these systems are studied and investigated.