Extracting Flow parameters of H 1743-322 during early phase of its 2010 outburst using Two Component Advective Flow model

TL;DR

This paper analyzes the early outburst phase of black hole candidate H 1743-322 using the TCAF model to extract accretion flow parameters and predict QPO frequencies, demonstrating the model's effectiveness.

Contribution

The study integrates the TCAF model into spectral analysis software to directly derive accretion flow parameters from observational data.

Findings

Accretion flow parameters were successfully extracted from spectral fits.

Predicted QPO frequencies closely match observed values.

The TCAF model effectively describes the spectral and timing properties during the outburst.

Abstract

We study the spectral properties of Galactic transient black hole candidate H 1743-322 during its early phase of 2010 outburst with Two Component Advective Flow (TCAF) model, after its inclusion in spectral analysis software package XSPEC as a local model. For the analysis, spectral data from RXTE/PCA instrument in 2.5-25 keV energy band are used. From the spectral fit, accretion flow parameters such as Keplerian (disk) rate, sub-Keplerian (halo) rate, location of the shock and strength of the shock are directly extracted. QPO frequencies are predicted from the TCAF model spectral fitted shock parameters, `closely' matches with the observed frequencies.