Speaker
Description
Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is an all-sky monitor composed of two microsatellites launched in Dec. 2020. Each GECAM satellite is equiped with 25 SiPM-based gamma-ray detectors (GRD) and 8 SiPM-based charged particle detectors (CPD). Due to the anomalies in the satellite power supply, only one satellite (GECAM-B) can observe about 10 hours per day. Neverthelss, GECAM-B has detected many gamma-ray transients, including gamma-ray bursts (GRBs), soft gamma-ray repeaters (SGRs), bursts from X-ray Binaries (XRB), Solar Flares and Terrestrial Gamma-ray Flashes (TGFs). In this talk, I'll give an overview of the GECAM mission and the observation results of GECAM-B. The in-flight performance of the SiPM-based detectors will be also presented.