Observation of Radio Galaxies and Clusters of Galaxies with VERITAS
Observation of Radio Galaxies and Clusters of Galaxies with VERITAS
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使用 VERITAS 观测射电星系和星系团
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
F. C. Collaboration
中科院分区：
文献类型：
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作者：
N. Galante;F. C. Collaboration
射电星系是唯一在VHE （E bbb100 GeV）波段探测到的非耀变体星系外物体。这些天体使我们能够研究AGN的主要子结构，特别是核心、喷流及其与星系间环境的相互作用。相反，星系团并没有被伽马射线天文台探测到。这些天体是数千个星系的集合，是宇宙中密度最大的大型结构。星系团由高达85%的暗物质组成，这可以通过自我湮灭和VHE伽马射线发射来揭示它的存在。对星系团中非热漫射射电辐射的观测表明，加速粒子和高磁场的存在也可以产生甚高能辐射。将介绍VERTIAS对射电星系和星系团的观测结果。
Radio galaxies are the only non-blazar extragalactic objects detected in the VHE (E >100 GeV) band. These objects enable the investigation of the main substructures of the AGN, in particular the core, the jet and its interaction with the intergalactic environment. Clusters of galaxies, instead, have not been detected by gamma-ray observatories. These objects are collections of up to thousands of galaxies and are the densest large-scale structures in the universe. Galaxy clusters consist of up to 85% dark matter, that could reveal its presence through self-annihilation and VHE gamma-ray emission. The observation of non-thermal diffuse radio emission in galaxy clusters suggests the presence of accelerated particles and high magnetic fields that can also produce VHE emission. Results from the VERTIAS observations of radio galaxies and galaxy clusters will be presented.