Abstract Details

Name: Anjali Rao
Affiliation: IUCAA, Pune
Conference ID: ASI2017_1318
Title : AstroSat/LAXPC results on timing properties of black hole binaries
Authors and Co-Authors : Ranjeev Misra, IUCAA,Pune
Abstract Type : Poster
Abstract Category : Stars,ISM and the Galaxy
Abstract : Large Area X-ray Proportional Counter (LAXPC) is an important scientific payload onboard AstroSat which is capable of providing unprecedented timing information of X-ray binaries. RXTE/PCA has revolutionized our understanding of timing behavior of X-ray binaries, however, LAXPC has several advantages over RXTE/PCA, therefore, new important results are expected from the instrument. We present our results on timing studies of the persistent black hole binaries Cyg X-1 and LMC X-1. The results show the presence of Quasi Periodic Oscillation (QPO) during hard states of Cyg X-1. The properties of the QPO have been studied in detail and the results on the variation of QPO power with energy, variation of time lag with frequency and energy will be presented. We also present our results on flux-resolved spectroscopy which is now possible owing to large collection area and event mode data of AstroSat/LAXPC.