Analysis of X-Ray Emission From Source TXS 0506+056 Using Xmm-Newton Observations

Abstract

We report the findings of analysis of X-ray flares in TXS 0506+056 using XMM-Newton data obtained from the maximum likelihood analysis. Two publicly available XMM-Newton X-ray observations for TXS 0506+056 were analyzed to study the spectrum and light curves. The spectrum curves revealed two energy bumps, with the lower energy bump at 0.5 keV and the higher energy bump at 6 keV. For observational IDs 0083960101 and 0083960201, the integrated flux for hard X-ray (2–10 keV) is 1.835  10^-12 ergs cm^-2 s^-1 and 1.813  10^-12 ergs cm^-2 s^-1 with corresponding uncertainty range of (1.754–1.913)  10^-12 ergs cm^-2 s^-1 and (1.490–3.515)  10^-12 ergs cm^-2 s^-1, respectively. The best fit models for X-ray data observations of observational IDs of 0083960101 and 0083960201 were phabs (gaussian+power-law) and Tbabs (gaussian+log-parabola) with reduced chi squared values of 1.56 and 1.05, respectively. A turning point at around 2 keV appeared in the spectrum curve, suggesting that the gaussian model only applies for soft X-ray (0.3–2 keV), while the power law and the log parabola model are the best fit models for hard X-ray (2–10 keV). Observation ID 0850780101 shows that the source TXS 0506+056 has a fractional variability of 1.4 %, while Observation ID 0850780201 shows a higher fractional variability of 3.0 %  which indicates brightness varies over time. A greater disparity in the source's rise time suggests a higher degree of variability in its brightness.