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arXiv 1801.04423astro-ph.HEhep-ph
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H 2356-309和1 ES 1101-232的VHE发射的本征光谱的性质

The nature of the intrinsic spectra from the VHE emission of H 2356-309 and 1ES 1101-232

Sarira Sahu, Alberto Rosales de León, Shigehiro Nagataki

摘要:

在2004- 2007年期间,HESS望远镜观测到了来自HBL H 2356-309和1 ES 1101-232的VHE辐射。特别是在2004年从H 2356-309和2004- 2005年期间从1 ES 1101-232的观测进行了分析,得出了较强的上限的EBL被发现是一致的下限从解决星系的积分光。在这里,我们已经使用了两个模板EBL模型证实的光强子模型,以适应从这两个HBL的VHE γ射线观测数据,并预测其本征谱。我们得到很好的拟合这两个HBL的VHE光谱。然而,预测的本征光谱是不同的EBL模型。对于HBL H 2356-309,我们获得了平坦的本征光谱,对于1 ES 1101-232,光谱比2略硬,但比1.5软得多。

英文摘要:

The VHE emission from the HBLs H 2356-309 and 1ES 1101-232 were observed by HESS telescopes during 2004--2007. Particularly the observation in 2004 from H 2356-309 and during 2004--2005 from 1ES 1101-232 were analyzed to derive strong upper limits on the EBL which was found to be consistent with the lower limits from the integrated light of resolved galaxies. Here we have used the photohadronic model corroborated by two template EBL models to fit the observed VHE gamma-ray data from these two HBLs and to predict their intrinsic spectra. We obtain very good fit to the VHE spectra of these two HBLs. However, the predicted intrinsic spectra are different for each EBL model. For the HBL H 2356-309, we obtain a flat intrinsic spectrum and for 1ES 1101-232 the spectrum is mildly harder than 2 but much softer than 1.5.

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