Dark matter search with the CALET detector on-board ISS

S. Torii, K. Yoshida, K. Kasahara, T. Tamura, J. Chang

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The CALorimetric Electron Telescope, CALET, mission is proposed for the observation of high-energy electrons and gamma-rays at the Exposed Facility of the Japanese Experiment Module on the International Space Station. The CALET has a capability to observe the electrons (without separation between e + and e - ) in 1 GeV-10 TeV and the gamma-rays in 20 MeV-several TeV with a high-energy resolution of 2% at 100 GeV, a good angular resolution of 0.06 degree at 100 GeV, and a high proton-rejection power of nearly 10 6 . The CALET has a geometrical factor of ∼1 m 2 sr, and the observation period is expected for more than three years. The very precise measurement of electrons enables us to detect a distinctive feature in the energy spectrum caused from WIMP dark matter in the Galactic halo. The excellent energy resolution of CALET, which is much better than GLAST or air Cherenkov telescopes over 10 GeV, enables us to detect gamma-ray lines in the sub-TeV region from WIMP dark matter annihilations. The CALET has, therefore, a unique capability to search for WIMP dark matter by the hybrid observations of electrons and gamma-rays.

本文言語English
ページ(範囲)2032-2036
ページ数5
ジャーナルAdvances in Space Research
41
12
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • 航空宇宙工学
  • 天文学と天体物理学
  • 地球物理学
  • 大気科学
  • 宇宙惑星科学
  • 地球惑星科学(全般)

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