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arXiv 0801.4315astro-ph
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3C 353星瓣的逆康普顿辐射

Inverse-Compton emission from the lobes of 3C 353

J. L. Goodger, M. J. Hardcastle, J. H. Croston, N. E. Kassim, R. A. Perley

摘要:

现在已经在大量的天体中发现了X射线辐射,这是由于在强大的射电星系叶中电子对微波背景光子的逆康普顿散射。将波瓣X射线发射的逆康普顿模型与从无线电同步辐射获得的信息相结合,提供了一种约束电子数量和磁场能量密度的方法,这不能单独使用无线电数据来实现。使用六个频率的新的和存档的无线电数据和新的XMM牛顿观测的Fanaroff & Riley II类射电星系3C 353,我们发现,逆康普顿发射检测到在这个源的射电瓣的水平与在其他对象中看到的一致。我们认为,在较亮的东瓣的X射线/射电比的变化需要位置变化的磁场强度。我们还研究了X射线核和集群,Zw 1819.1-0108,空间和光谱。

英文摘要:

X-ray emission due to inverse-Compton scattering of microwave background photons by electrons in the lobes of powerful radio galaxies has now been seen in a large number of objects. Combining an inverse-Compton model for the lobe X-ray emission with information obtained from radio synchrotron emission provides a method of constraining the electron population and magnetic field energy density, which cannot be accomplished using the radio data alone. Using six frequencies of new and archival radio data and new XMM-Newton observations of the Fanaroff & Riley class II radio galaxy 3C353, we show that inverse-Compton emission is detected in the radio lobes of this source at a level consistent with what is seen in other objects. We argue that variations in the X-ray/radio ratio in the brighter eastern lobe require positionally varying magnetic field strength. We also examine the X-ray nucleus and the cluster, Zw 1819.1-0108, spatially and spectrally.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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