IAR 05382
INSTITUTO ARGENTINO DE RADIOASTRONOMIA
Unidad Ejecutora - UE
artículos
Título:
Discovery of a Very High Energy Gamma-Ray Signal from the 3C 66A/B Region
Autor/es:
105 AUTORES; PAREDES, J. M.; 42 AUTORES MÁS
Revista:
ASTROPHYSICAL JOURNAL
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2009 vol. 692 p. 29 - 33
ISSN:
0004-637X
Resumen:
The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 hr in 2007 August-December. The observations resulted in the discovery of a Á-ray source centered at celestial coordinates R.A. = 2h23m12s and decl. = 430farcm7 (MAGIC J0223+430), coinciding with the nearby radio galaxy 3C 66B. A possible association of the excess with the blazar 3C 66A is discussed. The energy spectrum of MAGIC J0223+430 follows a power law with a normalization of (1.7 } 0.3stat } 0.6syst) ~ 10-11 TeV-1 cm-2 s-1 at 300 GeV and a photon index ¡ = -3.10 } 0.31stat } 0.2syst.
