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Proceedings Paper

In-orbit performance of the Suzaku wide-band all-sky monitor
Author(s): Kazutaka Yamaoka; Satoshi Sugita; Masanori Ohno; Takuya Takahashi; Yasushi Fukazawa; Yukikatsu Terada; Tohru Tamagawa; Keiichi Abe; Yasuhiko Endo; Kaori Onda; Satoshi Matsumura; Makoto Tashiro; Soojing Hong; Goro Sato; Kazuhiro Nakazawa; Tadayuki Takahashi; Ryohei Miyawaki; Teruaki Enoto; Motohide Kokubun; Kazuo Makishima; Toshio Murakami
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Paper Abstract

The X-ray astronomical satellite Suzaku was successfully launched in July 2005. The onboard Wideband All-sky Monitor (WAM) is designed as the second function of the large, thick BGO anti-coincidence shields of the Hard X-ray Detectors (HXD). It views about half of the whole sky and has a geometrical area of 800 cm2 per side, with a large effective area of 400 cm2 even at 1 MeV. Hence, the WAM is expected to provide unique opportunities to detect high energy emission from GRBs and solar flares in the MeV range. In fact, the WAM has detected at least 47 GRBs, although the fine-tuning of the GRB functions is still in progress. The most impressive GRB result is the bright, hard spectrum GRB 051008, which was detected up to 1 MeV with the WAM. We will present here the in-flight performance of the HXD/WAM during the initial eight-months of operations. The in-flight energy response, spectral and timing capabilities, and in-orbit background are described in this paper.

Paper Details

Date Published: 15 June 2006
PDF: 12 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 626643 (15 June 2006); doi: 10.1117/12.671994
Show Author Affiliations
Kazutaka Yamaoka, Aoyama Gakuin Univ. (Japan)
Satoshi Sugita, Aoyama Gakuin Univ. (Japan)
Masanori Ohno, Hiroshima Univ. (Japan)
Takuya Takahashi, Hiroshima Univ. (Japan)
Yasushi Fukazawa, Hiroshima Univ. (Japan)
Yukikatsu Terada, Institute of Physical and Chemical Research (Japan)
Tohru Tamagawa, Institute of Physical and Chemical Research (Japan)
Keiichi Abe, Saitama Univ. (Japan)
Yasuhiko Endo, Saitama Univ. (Japan)
Kaori Onda, Saitama Univ. (Japan)
Satoshi Matsumura, Saitama Univ. (Japan)
Makoto Tashiro, Saitama Univ. (Japan)
Soojing Hong, Nihon Univ. (Japan)
Goro Sato, Institute of Space and Astronautical Science, JAXA (Japan)
Kazuhiro Nakazawa, Institute of Space and Astronautical Science, JAXA (Japan)
Tadayuki Takahashi, Institute of Space and Astronautical Science, JAXA (Japan)
Ryohei Miyawaki, Univ. of Tokyo (Japan)
Teruaki Enoto, Univ. of Tokyo (Japan)
Motohide Kokubun, Univ. of Tokyo (Japan)
Kazuo Makishima, Univ. of Tokyo (Japan)
Toshio Murakami, Kanazawa Univ. (Japan)


Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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