Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-11-10
Proc. 30th Int. Cosm. Ray Conf., R. Caballero et al. (eds.), UNAM, Mexico City, 2008, Vol. 3, pg. 889-892
Astronomy and Astrophysics
Astrophysics
4 pages, 4 figures, to appear in the proceedings of the 30th International Cosmic Ray Conference, Merida, July 2007
Scientific paper
The MAGIC telescope has observed very-high energy gamma-ray emission from the BL Lac object PG 1553+113 in 2005 and 2006 at an overall significance is 8.8 sigma. The light curve shows no significant flux variations on a daily timescale. The flux level during 2005 was, however, significantly higher as compared to 2006. The differential energy spectrum between approx. 90 GeV and 500 GeV is well described by a power law with a spectral index of -4.2+-0.3. The photon energy spectrum and spectral modeling allow to pose upper limits of z=0.74 and z=0.56, respectively, on the yet undetermined redshift of PG 1553+113. Recent VLT observations of this blazar show featureless spectra in the near-IR, thus no direct redshift could be determined from these measurements.
Dorner Daniela
for the MAGIC Collaboration
Hayashida Masaaki
Hengstebeck Thomas
Kranich Daniel
No associations
LandOfFree
Detection of Very-High Energy Gamma-Rays from the BL Lac Object PG 1553+113 with the MAGIC Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Detection of Very-High Energy Gamma-Rays from the BL Lac Object PG 1553+113 with the MAGIC Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of Very-High Energy Gamma-Rays from the BL Lac Object PG 1553+113 with the MAGIC Telescope will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-27629