Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle

T. Maeno*, S. Orito, H. Matsunaga, K. Abe, K. Anraku, Y. Asaoka, M. Fujikawa, M. Imori, Y. Makida, N. Matsui, H. Matsumoto, J. Mitchell, T. Mitsui, A. Moiseev, M. Motoki, J. Nishimura, M. Nozaki, J. Ormes, T. Saeki, T. SanukiM. Sasaki, E. S. Seo, Y. Shikaze, T. Sonoda, R. Streitmatter, J. Suzuki, K. Tanaka, I. Ueda, J. Z. Wang, N. Yajima, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

*この研究の対応する著者

研究成果: Article査読

143 被引用数 (Scopus)

抄録

The energy spectrum of cosmic-ray antiprotons (p̄'s) has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 p̄'s were clearly identified in energy range 0.18-4.20 GeV. From these successive measurements of the p̄ spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray p̄'s. The p̄/p ratios showed no distinctive year-to-year variation during the positive Sun's polarity phase.

本文言語English
ページ(範囲)121-128
ページ数8
ジャーナルAstroparticle Physics
16
2
DOI
出版ステータスPublished - 2001 11月

ASJC Scopus subject areas

  • 天文学と天体物理学

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