Publication at Faculty of Mathematics and Physics |
2009
Abstract
VHE gamma-ray emission was discovered from the high-frequency-peaked BL Lac object RGB J0152 017 in November 2007. The instantaneously triggered multiwavelength observations with the X-ray satellites Swift and RXTE, the optical telescope ATOM and the radio telescope Nancay provided the first simultaneous SED for RGB J0152 017.
While these and further observations with H.E.S.S. gives no indication for variability, the follow-up observations until January 2008 with Swift (X-ray and UV-optical telescope) and ATOM (optical) show flux variations on time scales of ~10 days with different variability patterns.