Inference on Disk-Jet Connection of MAXI~J1836-194: Analysis with the TCAF Solution

Arghajit Jana, Dipak Debnath, Sandip K. Chakrabarti, Debjit Chatterjee

Published 2018-12-27Version 1

Galactic transient black hole candidate (BHC) MAXI~J1836-194 was discovered on 2011 Aug 30, by MAXI/GSC and Swift/BAT. The source activity during this outburst was continued for $\sim 3$ months before entering into the quiescent state. It again became active in March 2012 and continued for another $\sim 2$ months. In this paper, $3-25$ $keV$ RXTE/PCA spectra of 2011 outburst and $0.5-10.0$ $keV$ Swift/XRT data during its 2012 outburst are analyzed with the two-component advective flow (TCAF) model based fits file in XSPEC. We calculate the X-ray contributions coming from jets/outflow using a newly developed method based on the deviation of the TCAF model normalization. We also studied the correlation between observed radio and estimated jet X-ray fluxes. The correlation indices ($b$) are found to be $1.79$, and $0.61$, when the $7.45$~GHz VLA radio flux is correlated with the total X-ray and the jet X-ray fluxes in $3-25$ keV range respectively. It has been found that the jet contributes in X-rays up to a maximum of 86\% during its 2011 outburst. This makes the BHC MAXI~J1836-194 to be strongly jet dominated during the initial rising phase.