论文标题
HBL Blazars与XMM-Newton的X射线室内变异性
X-ray Intraday Variability of HBL Blazars with XMM-Newton
论文作者
论文摘要
我们提出了一项关于十个TEV发射高同步器峰峰（HBLS）的X射线内盘变异性的广泛研究：1ES 0229+200，1ES 0414+009，PKS 0548-322，1ES 1101-232，1H 1219+301，1H 1219+301， H 1426+426+428，MRM MR MR MR 2005-489和1ES 2344+514在其操作期间用二十五个XMM Newton制成的观察结果。在三个能带中估计了日内变异性：软（0.3--2 KEV），硬（2--10 KEV）和总数（0.3---10 KEV）。尽管这十个TEV HBL中有七个在三个sigma水平下表现出一定的盘中变异性，但尚未检测到超过6％的重大变化。我们通过从软带中提取硬度比来探索样品的光谱特性。在任何来源中均未观察到硬度比的显着变化。我们通过拟合幂律对可变的光弯曲曲线进行了功率光谱密度分析，对于不同的HBL，斜率位于1.11至2.93范围内。我们简要讨论了可能的发射机制，并对其中七个HBL进行了磁场，电子洛伦茨因子和发射区域的粗略估计。
We present an extensive study on the X-ray intraday variability of ten TeV-emitting high synchrotron peaked blazars (HBLs): 1ES 0229+200, 1ES 0414+009, PKS 0548-322, 1ES 1101-232, 1H 1219+301, H 1426+428, Mrk 501, 1ES 1959+650, PKS 2005-489, and 1ES 2344+514 made with twenty-five XMM-Newton pointed observations during its operational period. Intraday variability has been estimated in three energy bands: soft (0.3--2 keV), hard (2--10 keV) and total (0.3--10 keV). Although seven out of these ten TeV HBLs exhibited some intraday variability at three-sigma levels no major variations exceeding six percent were detected. We explored the spectral properties of the sample by extracting the hardness ratio from the soft and hard bands; no significant variations in the hardness ratio were observed in any source. We performed power spectral density analyses on the variable light-curves by fitting power-laws, yielding slopes lying in the range from 1.11 to 2.93 for different HBLs. We briefly discuss possible emission mechanisms and carry out rough estimates for magnetic fields, electron Lorentz factors and emission region sizes for seven of these HBLs.
