Astronomy and Space

Gamma-ray Transients Monitor

The Gamma-ray Transients Monitor (GTM) is the first space astronomical telescope of Taiwan. It is a secondary payload on board Formosat-8B (FS-8B), which is a remote-sensing satellite developed by TASA. The goal of GTM is to track Gamma Ray Bursts (GRBs) and other bright gamma-ray transients with energies ranging from 50 keV to 2 MeV. GTM is made up of two identical modules on opposite sides of the FS-8B. Each module has four sensor units facing different directions, covering half of the sky. The two modules will then cover the entire sky, including the direction obscured by the Earth. The sensor units consist of a Gadolinium Aluminum Gallium Garnet (GAGG) (a semiconductor) scintillator array (50 mm x 50 mm x 8 mm) that is readout by SiPM with 16 pixel channels. GTM is expected to detect approximately 50 GRBs per year. It is expected to launch in 2026. It is a collaboration between National Tsing Hua University, Academia Sinica and Taiwan Space Agency (TASA). The PI of the project is Prof. Hsiang-Kuang Chang from NTHU. The repository that stores the code for Science Data Center (SDC) of Gamma-ray Transients Monitor is on GitHub.

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See also

• ▸6 Draconis
• ▸Environment Protection and Biodiversity Conservation Act 1999
• ▸HD 184738

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