Large zenith angle observations of flares from Mkn421 in 2004 with H.E.S.S.

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Mkn421 was observed during a high flux state for 9 nights in April and May 2004 with the fully operational High Energy Stereoscopic System (H.E.S.S.) in Namibia. The observations were carried out at zenith angle distances of 61-64° which give an increased threshold of 1.5 TeV. Observations of the Crab nebula at similar zenith angles are used to check on the reliability of the large zenith angle observation technique. Roughly 7000 photons from Mkn421 were accumulated. The overall significance of the detection exceeds 80 standard deviations. The light-curve shows night-by-night variations by a factor of 2. The energy spectrum is curved and may be fit with a power-law with an exponential cut-off.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Large zenith angle observations of flares from Mkn421 in 2004 with H.E.S.S. 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 Large zenith angle observations of flares from Mkn421 in 2004 with H.E.S.S., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large zenith angle observations of flares from Mkn421 in 2004 with H.E.S.S. will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1179249

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.