TSUBAME: toward the Frontier of X-ray/Gamma-ray Polarimetry in Astronomy
著者
和文:
Toizumi, T.,
片岡 淳,
Tsubuku, Y.,
Kobayashi, M.,
谷津 陽一,
有元誠,
Shimokawabe, T.,
河合 誠之,
Omagari, K.,
Fujiwara, K.,
Ashida, H.,
Nishida, J.,
Fujihashi, K.,
Inagawa, S.,
Miura, Y.,
Matsunaga, S. ..
英文:
Toizumi, T.,
Kataoka, J.,
Tsubuku, Y.,
Kobayashi, M.,
Yatsu, Y.,
Makoto Arimoto,
Shimokawabe, T.,
Kawai, N.,
Omagari, K.,
Fujiwara, K.,
Ashida, H.,
Nishida, J.,
Fujihashi, K.,
Inagawa, S.,
Miura, Y.,
Matsunaga, S. ..
言語
English
掲載誌/書名
和文:
英文:
Transactions of Space Technology Japan
巻, 号, ページ
Vol. 7
pp. Tm31-Tm35
出版年月
2009年
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
“TSUBAME” is a university-built small satellite mission to measure polarization of hard X-ray photons (30-200 keV) from gamma-ray bursts (GRBs) using azimuthal anisotropy of Compton-scattered photons. Polarimetry in the hard X-ray and soft γ-ray bands should provide crucial information for understanding the high-energy emission mechanisms and the distribution of magnetic fields and radiation fields in the astrophysical sources. TSUBAME has two instruments: the Wide-field Burst Monitor (WBM) and the Hard X-ray Compton Polarimeter (HXCP). The WBM determines on board the direction of the burst occurrence with an accuracy of 10 degrees, then using a high speed attitude control device, the HXCP is pointed to the GRB within 15 seconds after the burst occurrence to promptly detect polarized X-ray photons from the GRB. We present an overview of the TSUBAME mission, its estimated scientific capability for detecting GRBs and measuring their X-ray polarization, development of multi-anode photomultiplier tubes that use ultra bi-alkali photocathodes, and the future plans of this mission.
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