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

TL;DR

This paper reviews a multicomponent model explaining the Crab Pulsar's emission features across a wide energy range, including recent observations above 25 GeV, demonstrating the model's consistency with new MAGIC data.

Contribution

It introduces a multicomponent spectral model for the Crab Pulsar that accounts for recent high-energy observations and explains pulse shape evolution across energies.

Findings

Model accurately fits MAGIC data above 25 GeV

Explains pulse shape evolution from optical to GeV energies

Spectra modeled as log-parabolic laws

Abstract

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.