Measurements of cosmic-ray low-energy antiproton and proton spectra in a transient period of solar field reversal

被引:153
作者
Asaoka, Y [1 ]
Shikaze, Y
Abe, K
Anraku, K
Fujikawa, M
Fuke, H
Haino, S
Imori, M
Izumi, K
Maeno, T
Makida, Y
Matsuda, S
Matsui, N
Matsukawa, T
Matsumoto, H
Matsunaga, H
Mitchell, J
Mitsui, T
Moiseev, A
Motoki, M
Nishimura, J
Nozaki, M
Orito, S
Ormes, JF
Saeki, T
Sanuki, T
Sasaki, M
Seo, ES
Sonoda, T
Streitmatter, R
Suzuki, J
Tanaka, K
Tanizaki, K
Ueda, I
Wang, JZ
Yajima, Y
Yamagami, Y
Yamamoto, A
Yamamoto, Y
Yamato, K
Yoshida, T
Yoshimura, K
机构
[1] Univ Tokyo, Tokyo 1130033, Japan
[2] Kobe Univ, Kobe, Hyogo 6578501, Japan
[3] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[5] Univ Maryland, College Pk, MD 20742 USA
[6] Inst Space & Astronaut Sci, Kanagawa 2298510, Japan
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.88.051101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The energy spectra of cosmic-ray low-energy antiprotons ((p) over bar 's) and protons (p's) have been measured by BESS in 1999 and 2000, during a period covering reversal at the solar magnetic field. Based an these measurements, a sudden increase of the (p) over bar /p flux ratio following the solar magnetic field reversal was observed, and it generally agrees with a drift model of the solar modulation.
引用
收藏
页码:511011 / 511014
页数:4
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