Multi-wavelength study of HESS J1303-631 with 14 years of Fermi-LAT data
Multi-wavelength study of HESS J1303-631 with 14 years of Fermi-LAT data
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DOI：
10.1088/1674-4527/acee52
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发表时间：
2023
影响因子：
1.8
通讯作者：
Jun Fang
中科院分区：
文献类型：
--
作者：
Liancheng Zhou;Qi Xia;Shiting Tian;Yun-Lu Gong;Jun Fang
Abstract. HESS J1303-631 is an extended TeV pulsar wind nebula (PWN) powered by the pulsar PSR J1301-6305 detected with the High Energy Stereoscopic System (H.E.S.S.). We present an analysis of the GeV gamma-ray region of HESS J1303-631 with about 14 years of Fermi Large Area Telescope (LAT) data. The GeV gamma-ray emission coincident with the very-high-energy (VHE) source has a photon index of 1.69±0.09 in 10-500 GeV band, and the GeV morphology has an extension to the same direction as indicated in the TeV band. Moreover, the observed multi-wavelength spectral energy distribution (SED) of the nebula from radio to TeV gamma-rays is studied with a one-zone time-dependent leptonic model, in which the electrons/positrons injected into the nebula is assumed to have a broken power-law spectrum. The result indicates that the multi-wavelength non-thermal emission can be well reproduced via synchrotron radiation and inverse Compton scattering of the particles.
