Abstract Details

Name: Nilam Navale
Affiliation: RJ College, University of Mumbai
Conference ID: ASI2021_145
Title : Spectroscopic Study of the Dipping LMXB NS XB 1254-690 using AstroSat
Authors and Co-Authors : Nilam Navale (1. University Department of Physics, University of Mumbai, Kalina, Santacruz, Mumbai 400 098, India 2. Ramniranjan Jhunjhunwala College, Ghatkopar, Mumbai 400086, India), Devraj Pawar (Ramniranjan Jhunjhunwala College, Ghatkopar, Mumbai 400086, India), A R Rao (Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai 400005, India), Ranjeev Misra (Inter University Centre for Astronomy and Astrophysics, Pune, Maharashtra, India, 411007)
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : XB 1254-690 is a low-mass X-ray binary (LMXB) dipping source hosting a neutron star with an orbital period of 3.88 hrs. In this work, we have done the broadband spectroscopic analysis of the source observed during the banana branch using observations from SXT and LAXPC instruments onboard AstroSat. XB 1254-690 was observed in May 2018 and its light curve showed evidence of flaring. A detailed study of the flares for this source has not been reported earlier. From our studies, the combined SXT+LAXPC spectrum of the flares can be explained using an absorbed thermally Comptonized continuum model. We will report results from flux resolved spectroscopy analysis to study the evolution of the flares in the source.