Inference on disk-jet connection of MAXI J1836–194 from spectral analysis with the TCAF solution  

作　　者：Arghajit Jana Dipak Debnath Sandip KChakrabarti Debjit Chatterjee 

机构地区：[1]Indian Centre for Space Physics,43 Chalantika,Garia St.Rd.,Kolkata,700084,India

出　　处：《Research in Astronomy and Astrophysics》2020年第3期28-41,共14页天文和天体物理学研究（英文版）

基　　金：support from DST/GITA sponsored by the India-Taiwan collaborative project fund(GITA/DST/TWN/P-76/2017);support from DST/SERB sponsored by the Extra Mural Research project(EMR/2016/003918);supported in part by the Higher Education Dept.of the Govt.of West Bengal,India;support from the ISRO sponsored RESPOND project(ISRO/RES/2/418/17-18)fund.

摘　　要：Galactic transient black hole candidate(BHC)MAXI J1836–194 was discovered on 2011 Aug30,by MAXI/GSC and Swift/BAT.The source activity during this outburst continued for^3 months before entering into the quiescent state.It again became active in March 2012 and continued for another^2 months.In this paper,3-25 keV RXTE/PCA spectra from the 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 files 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 study 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 Very Large Array(VLA)radio flux is correlated with the total X-ray and 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 strongly jet dominated during the initial rising phase.Galactic transient black hole candidate(BHC) MAXI J1836–194 was discovered on 2011 Aug30, by MAXI/GSC and Swift/BAT. The source activity during this outburst continued for ~ 3 months before entering into the quiescent state. It again became active in March 2012 and continued for another~ 2 months. In this paper, 3-25 keV RXTE/PCA spectra from the 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 files 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 study 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 Very Large Array(VLA) radio flux is correlated with the total X-ray and 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 strongly jet dominated during the initial rising phase.

关 键 词：X-Rays:binaries STARS individual:(MAXI J1836–194) stars:black HOLES accretion accretion DISKS ISM:jets and OUTFLOWS radiation:dynamics 

分 类 号：P155[天文地球—天文学]