Variability of the vela pulsar wind nebula observed with Chandra

被引：82

作者：

Pavlov, GG ^{[1
]}

Kargaltsev, OY ^{[1
]}

Sanwal, D ^{[1
]}

Garmire, GP ^{[1
]}

机构：

[1] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 554卷 / 02期

基金：

美国国家航空航天局;

关键词：

ISM : individual (Vela supernova remnant) pulsars : individual (PSR b0833-45); X-rays : individual (Vela pulsar wind nebula);

D O I：

10.1086/321721

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The observations of the pulsar wind nebula (PWN) around the Vela pulsar with the Advanced CCD Imaging Spectrometer aboard the Chandra X-Ray Observatory, taken on 2000 April 30 and November 30, reveal its complex morphology reminiscent of that of the Crab PWN. Comparison of the two observations shows changes up to 30% in the surface brightness of the PWN features. Some of the PWN elements show appreciable shifts, up to a few arcseconds (similar to 10(16) cm), and/or spectral changes. Such variations hold the potential to provide a new diagnostics for the study of PWNe.

引用

页码：L189 / L192

页数：4

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