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  Interpretation of the Gamma-ray signal from the Galactic center

Horns, D. (2005). Interpretation of the Gamma-ray signal from the Galactic center. In F. A. Aharonian, H. J. Völk, & D. (. Horns (Eds.), High Energy Gamma-Ray Astronomy (pp. 416-421). New York, NY: American Institute of Physics.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-898C-B Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-898D-9
Genre: Conference Paper

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 Creators:
Horns, D.1, Author           
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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 Abstract: Recent observations of the Galactic center with ground based gamma-ray instruments (CANGAROO-II, VERITAS, H.E.S.S.) have revealed a TeV (1012eV) gamma-ray signal consistent with the position of Sgr A*. The observed energy spectrum and angular distribution of the excess could be explained by a massive Dark Matter candidate with a minimum mass of 13 TeV(90 % c.l.) and an upper limit on the WIMP density for r < 10 pc of 1309 MΘ pc-3 x ( [σ υ]/3.10-26cm³s-1)-1/2. The angular distribution of the excess events is consistent with a cuspy profile with ρ (r)-∝ with α > 1 at a confidence level of 90%. Even though the mass and the cross section of the dark Matter constituents are unexpectedly high in the framework of most models of nonbaryonic Dark Matter, it can be ruled out.

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Language(s): eng - English
 Dates: 2005-02-21
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 282208
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Title: 2nd International Symposium on High Energy Gamma-Ray Astronomy
Place of Event: Heidelberg
Start-/End Date: 2004-07-26 - 2004-07-30

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Title: High Energy Gamma-Ray Astronomy
Source Genre: Proceedings
 Creator(s):
Aharonian, Felix A.1, Editor           
Völk, Heinz J., Editor
Horns, Dieter (Eds.), Editor
Affiliations:
1 Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550            
Publ. Info: New York, NY : American Institute of Physics
Pages: 821 p. Volume / Issue: - Sequence Number: - Start / End Page: 416 - 421 Identifier: ISBN: 0-7354-0229-9

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Title: AIP Conference Proceedings
Source Genre: Series
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Pages: - Volume / Issue: 745 Sequence Number: - Start / End Page: - Identifier: -