Ten Years of Monitoring 3C 273 with XMM-Newton
We present ten years optical/UV/X-ray observations of 3C 273 performed using XMM-Newton between 2000 and 2009. The short-time scale variability behaviour of the soft and hard X-ray light curves may suggest different origins of the soft/hard X-ray emissions. We fit well the 0.2-10 keV X-ray spectrum with a hard power-law component plus a soft Comptonization component. The lack of F-F correlation of the hard power-law component and the weakness of iron Ka lines may support dominance of the jet component. The soft X-ray excess correlates much better with ultraviolet than with the hard power-law component, strongly suggesting that soft excess emission originates from inverse Comptonization of UV photons.
Liu Liu Youhong Zhang
Department of Physics and Tsinghua Center for Astrophysics,Tsinghua University,Beijing,100084,China
国际会议
International Conference of Multiwavelength Variability of Blazars(Blazar多波段光变国际学术会议)
广州
英文
173-178
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）