ON THE VERY HIGH ENERGY SPECTRUM OF THE CRAB PULSAR

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/730/2/62· OSTI ID:21574878

Chkheidze, N; Machabeli, G; Osmanov, Z ^[1]

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1. Center for Theoretical Astrophysics, ITP, Ilia State University, 0162, Tbilisi (Georgia)

In the present paper, we construct a self-consistent theory interpreting the observations from the MAGIC Cherenkov Telescope of the very high energy (VHE) pulsed emission from the Crab pulsar. In particular, on the basis of Vlasov's kinetic equation, we study the process of quasi-linear diffusion (QLD) developed by means of the cyclotron instability. This mechanism provides simultaneous generation of low (radio) and VHE (0.01-25 GeV) emission on light cylinder scales in one location of the pulsar magnetosphere. A different approach to the synchrotron emission is considered, giving the spectral index of the VHE emission ({beta} = 2) and the exponential cutoff energy (23 GeV) in good agreement with the observational data.

• OSTI ID: 21574878
• Journal Information: Astrophysical Journal, Vol. 730, Issue 2; Other Information: DOI: 10.1088/0004-637X/730/2/62; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BOLTZMANN-VLASOV EQUATION
CYCLOTRON INSTABILITY
DIFFUSION
EMISSION
ENERGY SPECTRA
KINETIC EQUATIONS
PULSARS
COSMIC RADIO SOURCES
DIFFERENTIAL EQUATIONS
EQUATIONS
INSTABILITY
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SPECTRA