Characterization of few transient black hole candidates during their X-ray outbursts with TCAF Solution

TL;DR

This paper demonstrates that the TCAF model effectively fits the X-ray spectra of transient black hole candidates during outbursts, supporting its theoretical framework and enhancing understanding of their spectral and temporal properties.

Contribution

The study applies the TCAF model within XSPEC to analyze spectral data of TBHCs, confirming its capability to describe different outburst phases and advancing black hole accretion theory.

Findings

TCAF model successfully fits spectra across outburst phases

Spectral and temporal properties align with theoretical predictions

Supports TCAF as a robust tool for black hole studies

Abstract

The theoretical concept of Chakrabarti-Titarchuk two Component Advective Flow (TCAF) model was introduced around two decade ago in mid-90s. Recently after the inclusion of TCAF model into XSPEC as an additive table model, we find that it is quite capable to fit spectra from different phases of few transient black hole candidates (TBHCs) during their outbursts. This quite agrees with our theoretical understanding. Here, a brief summary of our recent studies of spectral and temporal properties of few TBHCs during their X-ray outbursts with TCAF will be discussed.