Nature of hard X-ray selected active galactic nuclei-based on optical identification of the ASCA large sky survey

Characteristics of solar flare hard X-ray sources as revealed with the hard X-ray telescope aboard the Yohkoh satellite

Hard X-ray observation of Cen A and implications on the emission mechanisms

Magnetohydrodynamic simulation of solar coronal X-ray jets based on magnetic reconnection model

Spectra and large-scale isotropy of the cosmic X-ray background from ASCA observations