Detection of the crab pulsar with MAGIC
Abstract
The MAGIC telescope has detected for the first time pulsed gamma-rays from the Crab pulsar in the VHE domain. The observations were performed with a newly developed trigger system that allows us to lower the energy threshold of the telescope from 55 GeV to 25 GeV. We present a comparison of light curves measured by our experiment with the one measured by space detectors. A strong energy dependent decrease of the first peak with respect to the second peak P1/P2 could be observed. Finally, fitting our measured data and previous measurements from EGRET we determine a turnover of the energy spectrum at 17.7 +- 2.8 (stat.) +- 5.0 (syst.) GeV, assuming an exponential cutoff. This rules out the scenario in which the gamma rays are produced in vicinity of the polar caps of the neutron star.
Cite
@article{arxiv.0907.0832,
title = {Detection of the crab pulsar with MAGIC},
author = {M. Lopez and N. Otte and M. Rissi and T. Schweizer and M. Shayduk and S. Klepser},
journal= {arXiv preprint arXiv:0907.0832},
year = {2019}
}
Comments
Contribution to the 31st ICRC, Lodz, Poland, July 2009