Very high energy gamma rays from the direction of Sagittarius A*

Link:
Autor/in:
Erscheinungsjahr:
2004
Medientyp:
Text
Schlagworte:
  • gamma-rays: observations
  • Galaxy: centre
  • Astrophysics
  • gamma-rays : observations
  • Galaxy : centre
Beschreibung:

  • We report the detection of a point-like source of very high energy (VHE) γ-rays coincident within 1' of Sgr A*, obtained with the HESS array of Cherenkov telescopes. The γ-rays exhibit a power-law energy spectrum with a spectral index of -2.2 ± 0.09 ± 0.15 and a flux above the 165 GeV threshold of (1.82 ± 0.22) × 10-7 m-2 s-1. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration.
Lizenz:
  • info:eu-repo/semantics/openAccess
Quellsystem:
Forschungsinformationssystem der UHH

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Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/2c2eb672-7d0e-4fba-9125-6707e5dd71a9