Detection of Gamma-Rays from the Protostellar Jet in the HH 80-81 System
Detection of Gamma-Rays from the Protostellar Jet in the HH 80-81 System
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DOI：
10.1088/1674-4527/ac3fad
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发表时间：
2022
影响因子：
1.8
通讯作者：
Zhang Pengfei
中科院分区：
文献类型：
--
作者：
Yan Dahai;Zhou Jianeng;Zhang Pengfei
Considering that the existence of relativistic particles in the protostellar jet has been confirmed by the detection of linearly polarized radio emission from the HH 80-81 jet, we search for gamma-rays from the HH 80-81 system using ten-year Fermi-LAT observations. A significant point-like γ-ray excess is found in the direction of the HH 80-81 system with the Test-Statistic value >100, which is likely produced in the HH 80-81 jet. The γ-ray spectrum extends only to 1 GeV with a photon index of 3.5. No significant variability is found in the gamma-ray emission. It is discussed that the properties of HH 80-81 jet suffice for producing the observed γ-rays.
