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          Institute: MPI für Kernphysik     Collection: High-Energy Astrophysics     Display Documents



ID: 282205.0, MPI für Kernphysik / High-Energy Astrophysics
TeV gamma rays from Sgr A*.
Authors:Neronov, A.; Aharonian, Felix
Language:English
Publisher:American Institute of Physics
Place of Publication:New York, NY
Date of Publication (YYYY-MM-DD):2005-02-21
Title of Proceedings:High Energy Gamma-Ray Astronomy
Start Page:409
End Page:415
Title of Series:AIP Conference Proceedings
Volume (in Series):745
Physical Description:821 p.
Name of Conference/Meeting:2nd International Symposium on High Energy Gamma-Ray Astronomy
Place of Conference/Meeting:Heidelberg
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2004-07-26
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2004-07-30
Copyright:©2005 American Institute of Physics
Review Status:not specified
Audience:Experts Only
Abstract / Description:Accreting Black Holes (BHs) are believed to be sites of possible particle acceleration with favorable conditions also for effective gamma-ray production. However, because of photonphoton pair production, the high energy gamma-ray emission of these objects (both of stellar mass and super-massive BHs) is generally suppressed, and consequently the unique information on possible particle acceleration processes near the event horizon of the BH is essentially lost.Fortunately this is not the case for the super-massive BH located at the dynamical center of our Galaxy (Sgr A*), which thanks to its extraordinary low bolometric luminosity is transparent for gamma-rays up to very high energies. We discuss different scenarios of gamma-ray production in Sgr A*, and show that for a reasonable set of parameters one can expect detectable gamma-ray fluxes of both hadronic and electronic origin.
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group H. J. Völk/High Energy Astrophysics (F. Aharonian)
MPI für Kernphysik/Group W. Hofmann
External Affiliations:Integral Science Data Center, Geneva, Switzerland
Identifiers:ISBN:0-7354-0229-9
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