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arXiv 1003.2438astro-ph.HE
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z<0.3的3C射电源的Chandra观测:核,扩散发射,喷流和热点

Chandra Observations of 3C Radio Sources with z<0.3: Nuclei, Diffuse Emission, Jets and Hotspots

F. Massaro, D. E. Harris, G. Tremblay, D. Axon, S. Baum, A. Capetti, M. Chiaberge, R. Gilli, G. Giovannini, P. Grandi, F. D. Macchetto, C. O'Dea, G. Risaliti, W. Sparks

摘要:

我们报告我们的钱德拉周期9计划,以观察60(钱德拉未观察到的)3C无线电源在z<0.3的一半,每个8千秒。在这里,我们给出了基本的数据:原子核的X射线强度和与射电结构相关的任何特征,如喷流中的热点和结。我们已经测量了软,中,硬带的通量,从而能够隔离源显着的固有列密度。对于较强的核,我们应用了标准谱分析,它提供了X射线谱指数和柱密度的最佳拟合值。我们发现,有三分之一的源的柱密度超过了10^{22} cm^{-2},存在本征吸收的证据。

英文摘要:

We report on our Chandra Cycle 9 program to observe half of the 60 (unobserved by Chandra) 3C radio sources at z<0.3 for 8 ksec each. Here we give the basic data: the X-ray intensity of the nuclei and any features associated with radio structures such as hot spots and knots in jets. We have measured fluxes in soft, medium and hard bands and are thus able to isolate sources with significant intrinsic column density. For the stronger nuclei, we have applied the standard spectral analysis which provides the best fit values of X-ray spectral index and column density. We find evidence for intrinsic absorption exceeding a column density of 10^{22} cm^{-2} for one third of our sources.

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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