使用AGILE检测来自Vela脉冲星风云的玛射线辐射
A Pellizzoni1, A Trois, M Tavani
1INAF-Osservatorio Astronomico di Cagliari, loc. Poggio dei Pini, strada 54, I-09012, Capoterra (CA), Italy. apellizz@ca.astro.it
概括
我们使用AGILE卫星在GeV马射线波段检测到Vela脉冲星风云. 这一发现有助于理解脉冲风星云,并识别银河系的马射线源.
科学领域:
- 天体物理学 天体物理学
- 高能天体物理学 高能天体物理学
- 马射线天文学 马射线天文学
背景情况:
- 脉冲星风星云 (PWNe) 是由脉冲星的相对论粒子提供能量,在电磁谱中发射.
- 之前的观测缺乏马射线数据,阻碍了对PWNe现象学和发射机制的全面理解.
- 存在TeV观测,但GeV马射线数据对于全面的多波长图像至关重要.
研究的目的:
- 为了检测Vela脉冲星风云在GeV马射线波段.
- 为了限制在PWNe中负责GeV排放的粒子群.
- 确定PWNe作为一种马射线发射器类别,为银河系马射线源做出贡献.
主要方法:
- 利用了来自AGILE卫星的数据.
- 分析了从100 MeV到3 GeV的能量范围内的马射线辐射.
- 专注于维拉脉冲星风星云.
主要成果:
- 成功检测到Vela脉冲星风星云在GeV马射线波段.
- 限制了负责观察到的GeV发射的粒子群体的属性.
- 证明PWNe可以成为显著的马射线发射器.
结论:
- 在GeV马射线中检测Vela PWN提供了关键的观测证据.
- 这一发现有助于理解PWNe.内粒子加速和辐射过程.
- 脉冲风星云被确定为未识别的银河系马射线源的一小部分潜在的源类.
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