arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.4199astro-ph
收藏

关于探测已灭绝射电脉冲星的可能性

On the Possibility of the Detection of Extinct Radio Pulsars

V. S. Beskin, S. A. Eliseeva

摘要:

我们探讨了探测已停止在无线电波段辐射的恒星的可能性。我们考虑两种模型:脉冲星表面的受阻粒子逃逸模型(Ruderman和Sutherland 1975年首次提出)和自由粒子逃逸模型(Arons 1981; Mestel 1999)。在具有受阻粒子逃逸的模型中,离开脉冲星磁层的粒子数量很少,并且它们的辐射不能用现有的仪器检测到。同时,对于自由粒子逃逸模型,粒子的数量和辐射强度都足够高,可以用目前可用的接收器(如GLAST和AGILE航天器)检测到这种辐射。已经灭绝的射电望远镜也有可能是未识别的EGRET来源之一。

英文摘要:

We explore the possibilities for detecting pulsars that have ceased to radiate in the radio band. We consider two models: the model with hindered particle escape from the pulsar surface (first suggested by Ruderman and Sutherland 1975) and the model with free particle escape (Arons 1981; Mestel 1999). In the model with hindered particle escape, the number of particles that leave the pulsar magnetosphere is small and their radiation cannot be detected with currently available instruments. At the same time, for the free particle escape model, both the number of particles and the radiation intensity are high enough for such pulsars to be detectable with the presently available receivers such as GLAST and AGILE spacecrafts. It is also possible that extinct radio pulsars can be among the unidentified EGRET sources.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑