arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1903.01147astro-ph.HE
收藏

用软gamma ray观测探测星系团中非热电子的低能谱

Probing the low-energy spectrum of non-thermal electrons in galaxy clusters with soft gamma ray observations

P. Marchegiani

摘要:

在本文中,我们研究的可能性探测的低能部分的非热电子光谱的星系团通过检测其非热韧致辐射(NTB)在软伽马射线波段,使用仪器,如e-ASTROGAM。使用后发座集群作为参考情况下,我们发现,对于非常低的值的最小能量的电子,在原则上的NTB是可检测的,但这种情况是可能的条件下,可以保持只有很短的时间相比,集群的寿命。因此,通过NTB限制非热电子低能谱的可能性在未来几年内很难实现。

英文摘要:

In this paper we study the possibility of probing the low-energy part of the spectrum of non-thermal electrons in galaxy clusters by detecting their non-thermal bremsstrahlung (NTB) emission in the soft gamma ray band, using instruments like e-ASTROGAM. Using the Coma cluster as a reference case, we find that, for very low values of the minimum energy of the electrons, in principle the NTB is detectable, but this situation is possible only for conditions that can be maintained only for a short time compared to the cluster lifetime. The possibility of constraining the low energy spectrum of non-thermal electrons through NTB is therefore hard to achieve in next years.

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。

↑