Journal Article

The influence of corotation on high-energy synchrotron emission in Crab-like pulsars

Z. Osmanov

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 411, issue 2, pages 973-977
Published in print February 2011 | ISSN: 0035-8711
Published online February 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2010.17733.x
The influence of corotation on high-energy synchrotron emission in Crab-like pulsars

Show Summary Details

Preview

For Crab-like pulsars, we consider the synchrotron mechanism under the influence of relativistic effects of rotation in order to study the production of very-high-energy (VHE) pulsed radiation. The process of quasi-linear diffusion (QLD) is applied to prevent the damping of synchrotron emission due to extremely strong magnetic fields. By examining the kinetic equation governing QLD, apart from the synchrotron radiative force we take into account the so-called reaction force, which is responsible for corotation and influences plasma processes in the zone near to the light cylinder (LC) surface. We have found that the relativistic effects of rotation significantly change the efficiency of QLD. In particular, examining magnetospheric parameters typical for Crab-like pulsars, it has been shown that, unlike the situation in which relativistic effects of rotation are not important at the LC surface, relativistic electrons may produce photons via the synchrotron mechanism even in the TeV domain. It is shown that VHE radiation is strongly correlated with relatively low-frequency emission.

Keywords: acceleration of particles; radiation mechanisms: non-thermal; pulsars: general

Journal Article.  3057 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.