The multicomponent model of the Crab Pulsar at energies above 25 GeV

Details The multicomponent model of the Crab Pulsar at energies above 25 GeV The multicomponent model of the Crab Pulsar at energies above 25 GeV

2009-03-21

arxiv.org/abs/0903.3655v1

Astronomy and Astrophysics, Volume 499, Issue 3, 2009, pp.847-850

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

4 pages, 3 figures. Accepted for publication in Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361/200811599

We review a proposed multicomponent model to explain the features of the pulsed emission and spectrum of the Crab Pulsar, on the light of the recent detection of pulsed emission above 25 GeV from the MAGIC atmospheric Cherenkov telescope. This model explains the evolution of the pulse shape and of the phase-resolved spectra, ranging from the optical/UV to the GeV energy band, on the assumption that the observed emission is due to several components, which have spectra modelled as log-parabolic laws. We show that the new MAGIC data are well consistent with the prevision of our model.

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