Abstract Details
| Name: Debjit Chatterjee Affiliation: Junior Research Fellow Conference ID: ASI2017_1153 Title : Spectral and Temporal properties of MAXI J1543-564 during initial phase of its 2011 outburst Authors and Co-Authors : Debjit Chatterjee (1) Dipak Debnath (1) Sandip K. Chakrabarti (1,2) Arghajit Jana (1) Santanu Mondal (3) 1. Indian Centre for Space Physics, 43 Chalantika, Garia Station Rd., Kolkata 700084, India 2. S. N. Bose Centre for Basic Sciences, Salt Lake, Kolkata 700098, India 3. Instituto de F´sica y Astronom´a, Facultad de Ciencias, Universidad de Valpara´so, Gran Bretana N 1111, Playa Ancha, Valparaso, Chile Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : We study the initial phase of the 2011 outburst of black hole candidate (BHC) MAXI J1543-564. We analyze 2.5-25 keV RXTE/PCA archival data to infer the spectral and temporal properties for this transient source. Two Component Advective Flow (TCAF) solution was used to fit spectral data, to study the accretion dynamics for this phase of the outburst. During this phase of the outburst, frequencies of the observed low frequency quasi-periodic oscillations (QPOs) are found to increase monotonically with time (day). We find that this evolution of the QPO frequencies fits well with Chakrabarti and his collaborators' propagating oscillatory shock (POS) model. We find the extracted shock parameters from POS model (such as shock location, compression ratio) roughly matched with the TCAF model fitted spetcral parameters. We notice that the normalization remains almost constant during this spectral fitting, which helped us to predict the most possible range of the mass of the black hole candidate. Our predicted mass range of the source using combined analysis with the TCAF solution and the POS model is 12.6-14.0 Solar mass. |