Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state
Abramowski, A. ; Acero, F. ; Aharonian, F. ; Cavazzuti, E. ; Giommi, P. ;
Sep - 2011
ISSN : 0004-6361 ;
journal : Astronomy \& Astrophysics
type: Article Journal

The high-frequency peaked BL Lac object PKS 2005-489 was the target of a multi-wavelength campaign with simultaneous observations in the TeV \gamma-ray (H.E.S.S.), GeV \gamma-ray (Fermi/LAT), X-ray (RXTE, Swift), UV (Swift) and optical (ATOM, Swift) bands. This campaign was carried out during a high flux state in the synchrotron regime. The flux in the optical and X-ray bands reached the level of the historical maxima. The hard GeV spectrum observed with Fermi/LAT connects well to the very high energy (VHE, E > 100 GeV) spectrum measured with H.E.S.S.

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