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arXiv 1202.5907astro-ph.HE
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云-喷流相互作用情景中TeV能量的M87耀斑的解释

Interpretation of the flares of M87 at TeV energies in the cloud-jet interaction scenario

Maxim V. Barkov, Valenti Bosch-Ramon, Felix A. Aharonian

摘要:

具有错位喷流的活动星系核最近被确定为一类高能伽马射线源。M87是这一类别的代表,在不到一天的时间尺度上显示出快速的TeV变化。我们目前的计算框架中的情况下,在非耀变体活动星系核的伽马射线耀斑产生的红巨星或气体云与射流相互作用。我们表明,无论是光变曲线和能量谱的壮观的2010年4月耀斑可以重现这个模型,假设一个相对巨大的云约1.e29克穿透到喷流在几十个史瓦西半径的超大质量黑洞。

英文摘要:

Active galactic nuclei with misaligned jets have been recently established as a class of high-energy gamma-ray sources. M87, a nearby representative of this class, shows fast TeV variability on timescales less than one day. We present calculations performed in the framework of the scenario in which gamma-ray flares in non-blazar active galactic nuclei are produced by a red giant or a gas cloud interacting with the jet. We show that both the light curve and energy spectrum of the spectacular April 2010 flare can be reproduced by this model, assuming that a relatively massive cloud of approx 1.e29 g penetrates into the jet at few tens of Schwarzschild radii from the super-massive black hole.

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