Abstract Details
| Name: Rukmini Jagirdar Affiliation: Osmania University Conference ID: ASI2018_1741 Title : First Investigations of fundamental parameters of later spectral type W UMa binaries in OGLE Fields Authors and Co-Authors : P.Ravi Raja, M.Raghu Prasad and D.Shanti Priya Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : We present the analysis of light curves of the late spectral type contact binaries with short orbital periods i.e. < 0.5 days, using the database of eclipsing binaries from OGLE (Optical Gravitational Lensing Experiment) project. The preliminary analysis was carried out using PHOEBE and the results obtained show that most of the binaries in study are in marginal contact phase in their evolutionary process. The results show that the selected W UMa binaries have high mass ratios and yet low degree of contact. This paper attempts to discuss the physical properties of such late spectral type binaries in view of angular momentum loss (AML) which will shed light on the nature of contact systems with late spectral type unevolved components. Key words: binaries – W UMa - late spectral type, AML, Binaries |