论文标题
TEV Blazars MRK 421和PKS 2155-304的X射线通量和光谱变化
X-ray Flux and Spectral Variability of the TeV Blazars Mrk 421 and PKS 2155-304
论文作者
论文摘要
我们审查了迄今为止由MRK 421和PKS 2155-304的各种X射线卫星研究的X射线通量和光谱变异性属性，这些卫星是TEV发出的Blazars。 MRK 421和PKS 2155-304分别是北半球和南半球最X射线发光的闪电。在各种时间尺度的完整电磁频谱中，Blazars在几分钟到数小时，几天，几周，几个月甚至几年之间显示出通量和光谱变化。不同时间尺度上的通量和光谱可变性可用于限制发射区域的大小，估计超巨大的黑洞质量，在超大巨大黑洞附近找到主要的发射机制，寻找时间序列数据中的准周期振荡以及〜Blazars的其他几个物理参数。通量和光谱变异性也是解释射流以及在观测时期不同时期的磁盘发射的主要工具。
We reviewed X-ray flux and spectral variability properties studied to date by various X-ray satellites for Mrk 421 and PKS 2155-304, which are TeV emitting blazars. Mrk 421 and PKS 2155-304 are the most X-ray luminous blazars in the northern and southern hemispheres, respectively. Blazars show flux and spectral variabilities in the complete electromagnetic spectrum on diverse timescales ranging from a few minutes to hours, days, weeks, months and even several years. The flux and spectral variability on different timescales can be used to constrain the size of the emitting region, estimate the super massive black hole mass, find the dominant emission mechanism in the close vicinity of the super massive black hole, search for quasi-periodic oscillations in time series data and~several other physical parameters of blazars. Flux and spectral variability is also a dominant tool to explain jet as well as disk emission from blazars at different epochs of observations.
