Accretion flow properties of MAXI J1543-564 during its initial phase of the 2011 outburst
Abstract
We study the initial phase of the 2011 outburst of the Galactic transient black hole candidate (BHC) MAXI J1543-564 using archival data of RXTE/PCA instruments. 2.5-25 keV PCA data are used to infer the spectral and temporal properties of this transient source during its very first outburst after discovery. We use additive table model fits file of the Two Component Advective Flow (TCAF) solution to study the accretion dynamics of the source during the initial phase of the outburst. Observed low frequency quasi-periodic oscillations (QPOs) showed monotonically increasing trend in frequency. We find that this evolution of the QPO frequencies fits well with the propagating oscillatory shock (POS) model to find instantaneous shock parameters. We see that POS model fitted extracted shock parameters, such as shock location, compression ratio, etc. roughly match with those from TCAF model. We estimate most accurately mass of the black hole from spectral fits with the TCAF solution and from QPO evolution fitted with the POS model.Chakrabarti, S.K., & Titarchuk, L.G., 1995, ApJ, 455, 623Debnath, D., Chakrabarti, S.K., & Mondal, S., 2014, MNRAS, 440, L121Chatterjee, D., Debnath, D., Chakrabarti, S.K., et al. 2016, ApJ, 827, 88
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E.591C