Vela pulsar wind nebula: determination of the anisotropy of accelerated particle distribution function

St. Petersburg Polytechnic University Journal - Physics and Mathematics Peter the Great St. Petersburg Polytechnic University

Since 2008

ISSN 2304-9782

ISSN 2618-8686

ISSN 2405-7223

Year: 2012 Issue: 3 (153)

24 183569

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UDK: 524.3-1 7, 524.354

Article type: Research Article

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Vela pulsar wind nebula: determination of the anisotropy of accelerated particle distribution function

Astrophysics

Authors:

Uvarov Yuri A. Bykov Andrey M. Pavlov Georgiy G. Levenfish Kseniya P. Kropotina Yuliya A.

Abstract:

A geometric model of Vela pulsar wind nebula (PWN) is suggested. The method of determination of leptonic distribution function anisotropy is developed based on the comparison of high resolution roentgen Chandra images of Vela PWN with model predicted images. An angular dependence of distribution function in the nebula rest frame is obtained in the ranges ofangle between particle velocity and pulsar wind direction T: 10q < T < 90q and 130q < T < 160q.