Abstract Details

Name: YASHPAL BHULLA
Affiliation: PACIFIC UNIVERSITY UDAIPUR
Conference ID: ASI2018_423
Title : Timing and Spectral studies of Neutron Star GX 5-1
Authors and Co-Authors : S.N.A JAAFRREY, PACIFIC UNIVERSITY UDAIPUR
Abstract Type : Poster
Abstract Category : Stars,ISM and the Galaxy
Abstract : We studied the behavior of Neutron star low mass X-Ray binary source GX 5-1 by using LAXPC and SXT instruments onboards AstroSat. We presents the prominent quasi-periodic oscillations from Normal Branch to Horizontal Branch in the range 30 Hz to 50 Hz. We used a qualitative models to describe the spectral features of GX 5-1. The disk black-body temperature vary in 1.5 keV to 2.0 keV corresponding to apparent disk redii 25 km to 20 km respectively. The observations have shown the absorption column density at 2.7 * 10^22 atoms cm^-2 in the energy range 0.7 to 30 keV by clubbing both of instruments. There are correlations of QPO frequencies with disk black-body and thermal comptonization components and found it has no evidence to existence of an Iron emission line.