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arXiv 1303.2102astro-ph.HE
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由MAGIC望远镜观测到的FSRQs的VHE gamma-ray发射

VHE gamma-ray emission from the FSRQs observed by the MAGIC telescopes

E. Lindfors, K. Nilsson, U. Barres de Almeida, D. Mazin, D. Paneque, K. Saito, J. Becerra Gonzalez, K. Berger, G. De Caneva, C. Schultz, J. Sitarek, A. Stamerra… 展开作者

E. Lindfors, K. Nilsson, U. Barres de Almeida, D. Mazin, D. Paneque, K. Saito, J. Becerra Gonzalez, K. Berger, G. De Caneva, C. Schultz, J. Sitarek, A. Stamerra, F. Tavecchio, S. Buson, F. D'Ammando, M. Hayashida, A. Lähteenmäki, M. Tornikoski, T. Hovatta

摘要:

在50多个由甚高能(VHE,E> 100 GeV)γ射线探测到的耀变体中,只有3个属于平谱射电类星体(FSRQs):PKS 1510-089、PKS 1222+216和3C 279。在VHE范围内的FSRQs的检测是具有挑战性的,主要是因为它们在GeV-TeV范围内的陡峭的软谱。MAGIC已经观察并检测到了所有已知的VHE发射器FSRQ,发现它们表现出非常不同的行为。2010年发现的PKS 1222+216(z = 0.432)具有观测到的快速变化,挑战了简单的单区排放模型和更复杂的情景。3C 279是最遥远的VHE伽马射线活动星系核(z = 0.536),它于2006年被MAGIC发现,并于2007年再次被探测到。2011年,MAGIC两次观测到3C 279:第一次是在监测活动中,后来的观测是由费米-LAT探测到的耀斑触发的。我们目前的MAGIC的结果和多波长的行为在这个耀斑时期。最后,我们报告了2012年对PKS 1510-089(z = 0.36)的探测,以及从光学到伽马射线的多波长同步数据。

英文摘要:

Among more than fifty blazars detected in very high energy (VHE, E>100GeV) gamma-rays, only three belong to the subclass of Flat Spectrum Radio Quasars (FSRQs): PKS 1510-089, PKS 1222+216 and 3C 279. The detection of FSRQs in the VHE range is challenging, mainly because of their steep soft spectra in the GeV-TeV regime. MAGIC has observed and detected all FSRQs known to be VHE emitters up to now and found that they exhibit very different behavior. The 2010 discovery of PKS 1222+216 (z = 0.432) with the fast variability observed, challenges simple one-zone emission models and more complicated scenarios have been proposed. 3C 279 is the most distant VHE gamma-ray emitting AGN (z = 0.536), which was discovered by MAGIC in 2006 and detected again in 2007. In 2011 MAGIC observed 3C 279 two times: first during a monitoring campaign and later observations were triggered by a flare detected with Fermi-LAT. We present the MAGIC results and the multiwavelength behavior during this flaring epoch. Finally, we report the 2012 detection of PKS 1510-089 (z = 0.36), together with its simultaneous multiwavelength data from optical to gamma-rays.

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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