Abstract Details

Affiliation: S. N. Bose National Centre for Basic Sciences
Conference ID: ASI2017_1398
Title : 2004 Outburst of BHC H1743-322: Analysis of spectral and timing properties using the TCAF Solution.
Authors and Co-Authors : Ayan Bhattacharjee^{1}, Indrani Banerjee^{1}, Anuvab Banerjee^{1,*}, Dipak Debnath^{2}, Sandip Kumar Chakrabarti^{1,2} 1. S.N. Bose National Centre for Basic Sciences,JD Block, Salt Lake, Kolkata 700106. 2. Indian Centre for Space Physics, 43 Chalantika, Garia Station Road, Kolkata 700084 *-presenting author
Abstract Type : Oral
Abstract Category : Stars,ISM and the Galaxy
Abstract : The black hole transient H1743-322 exhibited several outbursts with temporal and spectral variability since its discovery in 1977. These outbursts occur at a quasi-regular recurrence period of around 0.5 − 2 years, since its rediscovery in March 2003. We investigate accretion flow dynamics around the Low Mass X-ray Binary H1743-322 during its 2004 outburst using the RXTE/PCA archival data. We use Two Component Advective Flow (TCAF) solution to analyse the spectral data. From the fits with TCAF solution, we obtain day to day variation of physical accretion rates of Keplerian and sub-Keplerian components, size of the Compton cloud and its other properties. Analysis of the spectral properties of the 2004 outburst by keeping fitted normalization to be in a narrow range and its timing properties in terms of the presence and absence of QPOs, enable us to constrain the mass of the black hole in a range of 10.31Msun − 14.07Msun which is consistent with other estimates reported in the literature. *Accepted in MNRAS on 29th November 2016, doi: 10.1093/mnras/stw3117.