X-ray polarimetry small satellite TSUBAME

Makoto Arimoto*, Yoshihiro Tsubuku, Takahiro Toizumi, Mitsuyoshi Kobayashi, Yoichi Yatsu, Takashi Shimokawabe, Jun Kataoka, Nobuyuki Kawai, Kuniyuki Omagari, Ken Fujiwara, Yasumi Konda, Yohei Tanaka, Masaki Maeno, Tomio Yamanaka, Hiroki Ashida, Junichi Nishida, Kouta Fujihashi, Takuro Ikeda, Shinichi Inagawa, Yoshiyuki MiuraSaburo Matunaga

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


TSUBAME is a university-built small satellite mission to measure polarization of hard X-ray photons (30-100 keV) from Gamma-ray bursts (GRBs) using azimuthal angle anisotropy of Compton-scattered photons. Polarimetry in the hard X-ray and soft γ-ray band plays a crucial role in the understanding of high energy emission mechanisms and the distribution of magnetic fields and radiation fields. TSUBAME has two instruments: the Wide-field Bust 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 10 seconds after the burst occurrence to promptly detect polarized X-ray photons from the GRB. We present a TSUBAME mission overview, results of a Monte Carlo simulation of the X-ray polarization measurement and the plans for the future of this mission.

Original languageEnglish
Title of host publicationGamma-Ray Bursts 2007 - Proceedings of the Santa Fe Conference
Number of pages4
Publication statusPublished - 2008
Externally publishedYes
EventSanta Fe Conference on Gamma-Ray Bursts 2007, GRB 2007 - Santa Fe, NM, United States
Duration: 2007 Nov 52007 Nov 9

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceSanta Fe Conference on Gamma-Ray Bursts 2007, GRB 2007
Country/TerritoryUnited States
CitySanta Fe, NM


  • bursts-Polarimetry
  • gamma-rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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