Detection of Gamma-Rays from the Protostellar Jet in the HH 80-81 System
| Autor: | Yan, Dahai, Zhou, Jianeng, Zhang, Pengfei |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | 2022RAA....22b5016Y |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1674-4527/ac3fad |
| Popis: | 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 {\it Fermi}-LAT observations. A significant point-like $\gamma$-ray excess is found in the direction of the HH 80-81 system with Test-Statistic (TS) value $>$100, which is likely produced in the HH 80-81 jet. The $\gamma$-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 $\gamma$-rays. Comment: Research in Astronomy and Astrophysics, Volume 22, Issue 2, id.025016 |
| Databáze: | arXiv |
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