PoS - Proceedings of Science
Volume 331 - Frontier Research in Astrophysics – III (FRAPWS2018) - High Energy Astrophsyics
Suzaku Wide-band All-sky Monitor – 10 Years history
M. Ohno*, Y. Fukazawa, T. Kawano, K. Yamaoka, M.S. Tashiro, T. Yasuda, J. Enomoto, S. Matsuoka, T. Nagayoshi, S. Nakaya, S. Takeda, Y. Terada, S. Yabe, K. Hurley, H.A. Krimm, A.Y. Lien, N. Ohmori, R. Kinoshita, Y. Nishioka, M. Yamauchi, H. Yoshida, S. Sugita, Y. Urata, Y. Hanabata, W. Iwakiri, M. Kokubun, K. Makishima, Y. Nakagawa, K. Nakazawa and T. Sakamotoet al. (click to show)
Full text: pdf
Pre-published on: October 10, 2019
Published on: November 20, 2019
Abstract
We will review the 10 years history of all-sky observations in the hard X-ray to soft gamma-ray energy band by the Suzaku Wide-band All-sky Monitor. The Suzaku-WAM is the shield detector of the Hard X-ray detector onboard Suzaku and the primary purpose is to guard the main detector and the background rejection. In addition, the large effective area of these shield detectors ($\sim$ 600 cm$^2$ at 1 MeV and the large field of view ($>$ 2 $\pi$ str) enable us to perform all-sky observations in 50 $-$ 5000 keV. During 10 years operations, the WAM detected more than 1400 GRBs and many other transients such as soft gamma repeaters and solar flares. This detection rate of GRBs is comparable to that of other GRB-specific missions. Thanks to its large effective area, a time-resolved properties of these astronomical transients up to the MeV energy band were investigated with good photon statistics.
DOI: https://doi.org/10.22323/1.331.0046
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