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arXiv 1107.2785astro-ph.HEastro-ph.GA
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旋涡星系中的强相对论喷流

Powerful relativistic jets in spiral galaxies

Luigi Foschini

摘要:

窄线塞弗特1星系核(gamma-NLS 1 s)高能(E>100 MeV)γ射线的发现证实了这类活动星系核(AGN)中存在强大的相对论喷流。虽然喷流发射类似于耀变体和射电星系,但伽马-NLS 1有一些显著的不同:相对较小的质量(10^6-10^8 M_sun),高吸积率(爱丁顿极限的0.1-1倍),并且通常由螺旋星系托管。现在可以用相对论喷流来研究AGN的质量和吸积率的一个相当未知的范围。具体来说,在这项工作中,我提出了一些结果,通过比较样本的耀变体和伽马-NLS 1与另一个样本的银河系双星相对论喷流(恒星质量黑洞和中子星)。

英文摘要:

The discovery of high-energy (E>100 MeV) gamma rays from Narrow-Line Seyfert 1 Galaxies (gamma-NLS1s) has confirmed the presence of powerful relativistic jets in this class of active galactic nuclei (AGN). Although the jet emission is similar to that of blazars and radio galaxies, gamma-NLS1s have some striking differences: relatively small masses (10^6-10^8 M_sun), high accretion rates (0.1-1 times the Eddington limit) and are generally hosted by spiral galaxies. It is now possible to study a rather unexplored range of mass and accretion rates of AGN with relativistic jets. Specifically, in this work I present some results obtained by comparing a sample of blazars and gamma-NLS1s with another sample of Galactic binaries with relativistic jets (stellar mass black holes and neutron stars).

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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