TY - JOUR
T1 - Monte Carlo simulator and ancillary response generator of suzaku XRT/XIS system for spatially extended source analysis
AU - Ishisaki, Yoshitaka
AU - Maeda, Yoshitomo
AU - Fujimoto, Ryuichi
AU - Ozaki, Masanobu
AU - Ebisawa, Ken
AU - Takahashi, Tadayuki
AU - Ueda, Yoshihiro
AU - Ogasaka, Yasushi
AU - Ptak, Andrew
AU - Mukai, Koji
AU - Hamaguchi, Kenji
AU - Hirayama, Masaharu
AU - Kotani, Taro
AU - Kubo, Hidetoshi
AU - Shibata, Ryo
AU - Ebara, Masatoshi
AU - Furuzawa, Akihiro
AU - Iizuka, Ryo
AU - Inoue, Hirohiko
AU - Mori, Hideyuki
AU - Okada, Shunsaku
AU - Yokoyama, Yushi
AU - Matsumoto, Hironori
AU - Nakajima, Hiroshi
AU - Yamaguchi, Hiroya
AU - Anabuki, Naohisa
AU - Tawa, Noriaki
AU - Nagai, Masaaki
AU - Katsuda, Satoru
AU - Hayashida, Kiyoshi
AU - Bamba, Aya
AU - Miller, Eric D.
AU - Sato, Kosuke
AU - Yamasaki, Noriko Y.
PY - 2007
Y1 - 2007
N2 - We have developed a framework for the Monte Carlo simulations of X-Ray Telescope (XRT) and X-ray Imaging Spectrometer (XIS) on board Suzaku, mainly for the scientific analysis of spatially and spectroscopically complex celestial sources. A photon-by-photon instrumental simulator is built on the ANL platform, which has been successfully used in ASCA data analysis. The simulator has a modular structure, in which the XRT simulation is based on a ray-tracing library, while the XIS simulation utilizes a spectral "Redistribution Matrix File" (RMF), generated separately by other tools. Instrumental characteristics and calibration results [e.g., XRT geometry, reflectivity, mutual alignments, thermal shield transmission, build-up of the contamination on the XIS optical blocking filters (OBF)] are incorporated as completely as possible. Most of this information is available in the form of FITS (Flexible Image Transport System) files in the standard calibration database (CALDB). This simulator can also be utilized to generate an "Ancillary Response File" (ARF), which describes the XRT response and the amount of OBF contamination. An ARF is dependent on the spatial distribution of the celestial target and the photon accumulation region on the detector, as well as the observing conditions, such as the observation date and satellite attitude. We describe the principles of the simulator and the ARF generator, and demonstrate their performance compared with in-flight data.
AB - We have developed a framework for the Monte Carlo simulations of X-Ray Telescope (XRT) and X-ray Imaging Spectrometer (XIS) on board Suzaku, mainly for the scientific analysis of spatially and spectroscopically complex celestial sources. A photon-by-photon instrumental simulator is built on the ANL platform, which has been successfully used in ASCA data analysis. The simulator has a modular structure, in which the XRT simulation is based on a ray-tracing library, while the XIS simulation utilizes a spectral "Redistribution Matrix File" (RMF), generated separately by other tools. Instrumental characteristics and calibration results [e.g., XRT geometry, reflectivity, mutual alignments, thermal shield transmission, build-up of the contamination on the XIS optical blocking filters (OBF)] are incorporated as completely as possible. Most of this information is available in the form of FITS (Flexible Image Transport System) files in the standard calibration database (CALDB). This simulator can also be utilized to generate an "Ancillary Response File" (ARF), which describes the XRT response and the amount of OBF contamination. An ARF is dependent on the spatial distribution of the celestial target and the photon accumulation region on the detector, as well as the observing conditions, such as the observation date and satellite attitude. We describe the principles of the simulator and the ARF generator, and demonstrate their performance compared with in-flight data.
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U2 - 10.1093/pasj/59.sp1.s113
DO - 10.1093/pasj/59.sp1.s113
M3 - Article
AN - SCOPUS:34047106130
SN - 0004-6264
VL - 59
SP - S113-S132
JO - Publications of the Astronomical Society of Japan
JF - Publications of the Astronomical Society of Japan
IS - 1 SPEC. ISS.
ER -