Strong lensing of high-energy neutrinos
Strong lensing of high-energy neutrinos
复制标题
高能中微子的强透镜效应
DOI：
10.1103/physrevd.107.023011
复制
发表时间：
2023
影响因子：
5
通讯作者：
Kusenko Alexander
中科院分区：
文献类型：
--
作者：
Taak Yoon Chan;Treu Tommaso;Inoue Yoshiyuki;Kusenko Alexander
我们考虑了星系尺度偏转器的强引力透镜效应对高能中微子观测的影响。对于宇宙距离的hen，多次成像的光学深度为，这意味着虽然我们不期望使用现有样品进行多次成像的hen，但下一代实验应该能够探测到第一次这样的事件。然后，结合方向和能量信息，我们给出了预期时间延迟的分布，以帮助识别此类事件。为了帮助评估HEN的产生机制，我们说明了透镜效应如何影响源群的各种固有光度函数的观测数。最后，以千帕秒尺度喷流为例，我们发现透镜效应对宇宙中微子背景通量计算的影响可以忽略不计。
We consider the effects of strong gravitational lensing by galaxy-scale deflectors on the observations of high-energy () neutrinos (HENs). For HENs at cosmological distances, the optical depth for multiple imaging is, implying that while we do not expect any multiply imaged HENs with present samples, next-generation experiments should be able to detect the first such event. We then present the distribution of expected time delays to aid in the identification of such events, in combination with directional and energy information. In order to assist in the evaluation of HEN production mechanisms, we illustrate how lensing affects the observed number counts for a variety of intrinsic luminosity functions of the source population. Finally, we see that the lensing effects on the cosmic neutrino background flux calculation would be negligible by taking kiloparsec-scale jets as an example.