Hagino et al., JATIS, 2020
We studied the particle-induced background of the Hitomi HXI. Different layers of the Si-DSSDs and CdTe-DSD show different origins: trapped electrons, Albedo neutrons, and activation.
Suzuki et al., PASJ, 2020
We performed a systematic study on gamma-ray emitting supernova remnants. We found that acceleration energy confined around shocks decreases with increasing time, and estimated the particle escape timescale to be 10–100 kyr.
Suzuki et al., NIMA, 2020
We studied the detector response of the CMOS sensor XRPIX, which is planned to be onboard future X-ray satellites. We investigated the processes of the charge production by an incident X-ray photon, its transfer, and signal generation. Our simulation tool can be applied for general semiconductor sensors.
Suzuki et al., ApJ, 2020
We investigated the peculiar thermal X-ray emission associated with the supernova remnant G359.1-0.5. By carefully estimating the sky and detector background, we concluded that the origin of its recombining plasma will be adiabatic expansion in its young phase of evolution.
Suzuki et al., PASJ, 2018
We studied the thermal X-ray emission associated with the supernova remnant HB 21. The property of its recombining plasma was estimated. We also compared the properties of the thermal plasma and associated gamma-ray emission to other supernova remnants, and found a trend in which those with larger plasma ages tend to be associated with softer gamma-ray spectra. This tendency suggests that the escape of accelerated particles develops with the plasma age.