AE005-10
Terrestrial Gamma-ray Flashes - POLAR's Observation

Wednesday, 9 December 2020: 16:28
Virtual
Yi Zhao1, Shaolin Xiong2, Jianchao Sun2 and Heng Yu3, (1)Beijing Normal University, Beijing, China, (2)IHEP Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China, (3)BNU Beijing Normal University, Beijing, China
Abstract:
Terrestrial Gamma-ray Flashes (TGFs) are bright and brief gamma-ray emission originated from the Earth's atmosphere. The Gamma-ray Bursts Polarimeter (POLAR) onboard Chinese Space Laboratory Tiangong-2, operated from September 2016 to April 2017, is a space-borne Compton polarimeter aiming to measure the polarization of Gamma-ray Burst prompt emission in the energy range of 50-500 keV. In this study, we used the Lightning-supported Identify (LI) approach to search and analyze TGFs in POLAR data. About 10+ TGFs with lightning association are identified by this method. We also derived the gamma-ray upper limit for lightnings without apparent TGF association.
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