The plasma emission model of RBS1774
Abstract
In the present paper we construct a self-consistent theory, interpreting the observational properties of RBS1774. It is well known that the distribution function of relativistic particles is one-dimensional at the pulsar surface. However, cyclotron instability causes an appearance of transverse momenta of relativistic electrons, which as a result, start to radiate in the synchrotron regime. We study the process of the quasi-linear diffusion developed by means of the cyclotron instability on the basis of the Vlasov's kinetic equation. This mechanism provides generation of measured optical and X-ray emission on the light cylinder lengthscales. A different approach of the synchrotron theory is considered, giving the spectral energy distribution that is in a good agreement with the XMM-Newton observational data. We also provide the possible explanation of the spectral feature at 0.7 keV, in the framework of the model.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 2011
- DOI:
- 10.1051/0004-6361/201016005
- arXiv:
- arXiv:1012.4432
- Bibcode:
- 2011A&A...527A...2C
- Keywords:
-
- X-rays;
- stars: pulsars: individual: RBS1774;
- radiation mechanisms: non-thermal;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 5 pages, 3 figures