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  On the Origin of VHE Gamma-Ray Emission in M87

Rieger, F., & Aharonian, F. (2009). On the Origin of VHE Gamma-Ray Emission in M87. In F. A. Aharonian, W. Hofmann, & F. M. Rieger (Eds.), High energy gamma-ray astronomy: 4th International Meeting on High Energy Gamma-Ray Astronomy, Heidelberg, Germany, 7 - 11 July 2008 (pp. 640-643). Melville, N.Y.: American Institute of Physics.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7700-7 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7701-5
Genre: Conference Paper

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 Creators:
Rieger, Frank1, Author           
Aharonian, Felix1, Author           
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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 Abstract: Recent very high energy (VHE) gamma-ray observations have demonstrated that the radio galaxy M87 is a rapidly variable TeV emitting source. While a number of models for the origin of the observed TeV emission has been put forward, we show that at the current stage near-black-hole scenarios look most promising. We discuss one realization where electrons are centrifugally acceleration along rotating magnetic field lines in the vicinity of the central black hole, and Compton up-scatter the ambient disk photons, resulting in TeV characteristics close to the observed one. This suggests that in nearby, low- luminous (non-aligned) Active Galactic Nuclei (AGNs), VHE processes close to the supermassive black hole may become observable and allow a fundamental diagnosis of its environment.

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Language(s): eng - English
 Dates: 2009
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: eDoc: 436505
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Title: 4th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy
Place of Event: Heidelberg, Germany
Start-/End Date: 2008-07-07 - 2008-07-11

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Title: High energy gamma-ray astronomy: 4th International Meeting on High Energy Gamma-Ray Astronomy, Heidelberg, Germany, 7 - 11 July 2008
Source Genre: Proceedings
 Creator(s):
Aharonian, Felix A.1, Editor           
Hofmann, Werner1, Editor           
Rieger, Frank M.1, Editor           
Affiliations:
1 Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550            
Publ. Info: Melville, N.Y. : American Institute of Physics
Pages: XVI, 917 S. : Ill., graph. Darst. Volume / Issue: - Sequence Number: - Start / End Page: 640 - 643 Identifier: -

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Title: AIP Conference Proceedings
Source Genre: Series
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Pages: - Volume / Issue: 1085 Sequence Number: - Start / End Page: - Identifier: -