Suzaku-WAM soft gamma-ray all-sky monitor by the earth occultation technique

摘要

Suzaku-WAM has detected many gamma-ray bursts and solar flares. In addition, thanks to its large field of view, WAM is able to monitor the bright soft gamma-ray sources by the earth occultation technique, as CGRO-BATSE. We have constructed the analysis system of the WAM earth occultation, performed calibration by using spectra of the Crab nebula, and then found that the response uncertainty is around 10-20%. As a result, WAM is an important all-sky monitor in 50keV-lMeV band. This is unique against the RXTE/ASM (l-10keV) and Swift/BAT (10-100keV). Here, we introduce the analysis process, Crab calibration, and preliminary results on the Galactic black hole binaries and AGNs.