Discovery of Very High Energy gamma-rays from the blazar S5 0716+714

Details Discovery of Very High Energy gamma-rays from the blazar S5 0716+714 Discovery of Very High Energy gamma-rays from the blazar S5 0716+714

2009-07-14

arxiv.org/abs/0907.2386v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

accepted to ApJL

Scientific paper

The MAGIC collaboration reports the detection of the blazar S5 0716+714 z=0.31+-0.08 in very high energy gamma-rays. The observations were performed in November 2007 and in April 2008, and were triggered by the KVA telescope due to the high optical state of the object. An overall significance of the signal accounts to S =5.8sigma for 13.1 hours of data. Most of the signal S = 6.9sigma comes from the April 2008 data sample during a higher optical state of the object suggesting a possible correlation between the VHE gamma-ray and optical emissions. The differential energy spectrum of the 2008 data sample follows a power law with a photon index of Gamma = 3.45+-0.54_(stat)+-0.2_(syst), and the integral flux above 400GeV is at the level of 7.5+-2.2_(stat)+-2.3_(syst)*10^-12 cm^-2 s^-1 corresponding to a 9% Crab Nebula flux. Modeling of the broad band spectral energy distribution indicates that a structured jet model appears to be more promising in describing the available data than a simple one zone synchrotron self-Compton model.

Affiliated with

Also associated with

No associations

Rating

Discovery of Very High Energy gamma-rays from the blazar S5 0716+714 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 Discovery of Very High Energy gamma-rays from the blazar S5 0716+714, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of Very High Energy gamma-rays from the blazar S5 0716+714 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332122