Astrometric Calibration and Estimate of the Systematic Error in HETE WXM Localizations Obtained by the RIKEN Cross Correlation Method
著者
和文:
Shirasaki, Y.,
河合 誠之,
Yoshida, A.,
Matsuoka, M.,
Tamagawa, T.,
Torii, K.,
Sakamoto, T.,
Fenimore, E.,
Galassi, M.,
Lamb, D.,
Graziani, C.,
Vanderspek, R. ..
英文:
Shirasaki, Y.,
Kawai, N.,
Yoshida, A.,
Matsuoka, M.,
Tamagawa, T.,
Torii, K.,
Sakamoto, T.,
Fenimore, E.,
Galassi, M.,
Lamb, D.,
Graziani, C.,
Vanderspek, R. ..
言語
English
掲載誌/書名
和文:
英文:
Gamma-Ray Burst and Afterglow Astronomy 2001: A Workshop Celebrating the First Year of the HETE Mission
巻, 号, ページ
Vol. 662
pp. 117-122
出版年月
2003年4月
出版者
和文:
英文:
会議名称
和文:
英文:
開催地
和文:
英文:
アブストラクト
Wide field X-ray Monitor (WXM) of HETE-2 is designed to localized the GRBs which occurred in its wide field of view (60° × 60°) with 10' accuracy. In order to maintain such a good accuracy, we have been monitoring the positional response of proportional counter and correcting the change at regular intervals. We also have determined the difference of the alignments between WXM and the optical camera system, which is crucially important for determining the coordinate of the GRBs. The localization accuracy is estimated to be ~ 3' for 1 Crab burst with 20 sec duration including the systematic error of 2.2'.