Novel Analysis of the Multiwavelength Structure of the Relativistic Jet in Quasar 3C 273
Novel Analysis of the Multiwavelength Structure of the Relativistic Jet in Quasar 3C 273
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类星体 3C 273 中相对论性喷流多波长结构的新分析
DOI：
10.3847/1538-4357/aa755d
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
B. Hnatyk
中科院分区：
文献类型：
--
作者：
V. Marchenko;D. Harris;M. Ostrowski;Ł. Stawarz;A. Bohdan;M. Jamrozy;B. Hnatyk
我们提出了一个最好的质量多波长的数据收集的大规模喷流在核心为主的类星体3C 273的详细分析。我们分析了钱德拉X射线天文台的目标的所有档案观测，哈勃太空望远镜的远紫外观测，以及超大阵列获得的8.4 GHz地图。在我们的研究中，我们专注于调查在不同频率的流出的形态，因此，我们应用各种技术的图像去卷积，特别注意精确的钱德拉和哈勃点扩散函数的建模。我们发现，在3C 273的X射线和远紫外射流的突出亮度增强-“结”-不是点状的，可以横向解决的扩展功能的大小约。此外，射电外流比去卷积的X射线/紫外线喷流更宽。我们还发现了间接证据，X射线结的强度峰值系统地位于相应的射电强度峰值的上游，沿喷流的投影空间偏移沿着范围从到。我们讨论了我们的研究结果在更广泛的背景下的多组件模型的发射和结构的大型类星体喷流，并推测的物理过程，使发射超相对论电子沿着整个射流长度超过100千秒差距的有效加速。
We present a detailed analysis of the best-quality multiwavelength data gathered for the large-scale jet in the core-dominated quasar 3C 273. We analyze all the archival observations of the target with the Chandra X-ray Observatory, the far-ultraviolet observations with the Hubble Space Telescope, and the 8.4 GHz map obtained with the Very Large Array. In our study, we focus on investigating the morphology of the outflow at different frequencies, and therefore we apply various techniques for the image deconvolution, paying particular attention to a precise modeling of the Chandra and Hubble point-spread functions. We find that the prominent brightness enhancements in the X-ray and far-ultraviolet jet of 3C 273—the “knots”—are not point-like, and can be resolved transversely as extended features with sizes of about . Also, the radio outflow is wider than the deconvolved X-ray/ultraviolet jet. We have also found circumstantial evidence that the intensity peaks of the X-ray knots are located systematically upstream of the corresponding radio intensity peaks, with the projected spatial offsets along the jet ranging from up to . We discuss our findings in the wider context of multi-component models for the emission and structure of large-scale quasar jets, and speculate on the physical processes enabling an efficient acceleration of the emitting ultrarelativistic electrons along the entire jet length that exceeds 100 kpc.
活动星系的 X 射线喷流
DOI：
10.1007/s00159-008-0016-7
发表时间：
2009
期刊：
The Astronomy and Astrophysics Review
影响因子：
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作者：
Worrall D
通讯作者：
Worrall D