A Novel Mechanism of Pair Creation in Pulsar Magnetospheres

Universe

Nino Chkheidze¹  George Machabeli¹  Zaza Osmanov² 

[1] Centre for Theoretical Astrophysics (ITP), Ilia State University, G. Tsereteli 3, 0162 Tbilisi, Georgia;School of Physics, Free University of Tbilisi, 0183 Tbilisi, Georgia;

关键词: pair creation;    pulsars: general;    instabilities;    acceleration of particles;   

DOI  :  10.3390/universe7090331

来源: DOAJ

【 摘 要 】

In this paper we study the possibility of efficient pair production in a pulsar’s magnetosphere. It has been shown that by means of relativistic centrifugal force the electrostatic field exponentially amplifies. As a result the field approaches the Schwinger limit leading to a pair creation process in the light cylinder area where the effects of rotation are very efficient. Analysing the parameters of the normal period (∼1 s) pulsars we found that the process is so efficient that the number density of electron–positron pairs exceeds the Goldreich–Julian density by five orders of magnitude.

【 授权许可】

Unknown