• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Cosmic Ray Conference >Variability along the Blazar-Sequence - Hints for extragalactic Cosmic Rays?
【24h】

Variability along the Blazar-Sequence - Hints for extragalactic Cosmic Rays?

机译：Blazar序列的可变性-银河系外宇宙射线的提示？

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The spectral energy distribution and variability of several blazars (Mkn 501, 1 ES 2344+51.4, PKS 2155-30.4,1 ES 1218+30.4, 3C 454.3) along the blazar sequence is investigated using a selfconsistent and timedependent lepto-hadronichybrid emission model. The BL Lac objects in the list are successfully modelled with purely leptonic radiationprocesses (essentially Synchrotron Self-Compton emission), while the Flat Spectrum Radio Quasar requires highly rel-ativistichadrons to be present within the jet. Variability is exploited as well with our model to distinguish betweenSelf-Compton and hadronic gamma radiation making use of their different signatures in lightcurves. As a consequenceactive galactic nuclei with z > 0.5 are the best candidates as sources of extragalactic consmic rays, since High-PeakedBL Lac objects do not seem to accelerate protons to energies above thermal. Furthermore the parameters found during themodelling of the objects agree very well with obervations of e.g. superluminal motion or typical variability timescales.
机译：使用自洽且随时间变化的钩端螺旋杂交模型研究了几种blazar（Mkn 501，1 ES 2344 + 51.4，PKS 2155-30.4,1 ES 1218 + 30.4，3C 454.3）沿谱线的光谱能量分布和变异性。列表中的BL Lac对象已成功通过纯轻子辐射过程（基本上是同步加速器自康普顿发射）建模，而平面频谱无线电类星体则需要在射流中存在高度相关的强子强子。我们的模型还利用可变性来区分自康普顿辐射和强子伽马射线，利用它们在光曲线中的不同特征。结果，z> 0.5的活动银河原子核是银河系外宇宙射线的最佳候选者，因为High-PeakedBL Lac物体似乎并未将质子加速至高于热能。此外，在对象建模期间发现的参数与例如图5的观察结果非常吻合。超腔运动或典型的可变时标。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号