HESS observations of pulsar wind nebulae

被引：0
|
作者：
de Jager, OC [1 ]
机构：
[1] NW Univ, Unit Space Phys, ZA-2520 Potchefstroom, South Africa
来源：
Astrophysical Sources of High Energy Particles and Radiation | 2005年 / 801卷
关键词：
pulsar wind nebulae : general; stars : neutron; gamma-rays;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The high resolution capabilities of the High Energy Stereoscopic System (HESS) introduced a new era in Gamma-Ray Astronomy, and opens a new window on pulsar wind nebula (PWN) research. A rotationally induced jet (associated with PSR B1509-58) is resolved for the first time in gamma-rays, allowing us to trace the particle transport directly, without having the complicating effect of spatially varying field distributions on the synchrotron emissivity. For PWN older or more extended than Crab (i.e. those with lower field strengths), HESS also reveal the properties of electrons contributing to the EUV/soft X-ray synchrotron bands, whereas EUV/soft X-rays suffer from severe interstellar absorption effects. Finally, HESS morphological studies of evovled PWN also allow us to directly measure the effects of assymetric reverse shock interactions due to SNR forward shock expansion into the inhomogeneous interstellar medium.
引用
收藏
页码：298 / 303
页数：6
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