Cosmic ray H/H ratio measured from BESS in 2000 during solar maximum |
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| Authors: | KC Kim K Abe H Fuke T Hams MH Lee Y Makida S Matsuda JW Mitchell J Nishimura JF Ormes M Sasaki ES Seo Y Shikaze RE Streitmatter J Suzuki K Tanaka T Yamagami A Yamamoto T Yoshida K Yoshimura |
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| Institution: | 1. IPST, University of Maryland, College Park, MD 20742, USA;2. Kobe University, Kobe, Hyogo 657-8501, Japan;3. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa 229-8510, Japan;4. NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA;5. High Enegy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;6. The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan;g University of Denver, Denver, CO 80208, USA |
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| Abstract: | The Balloon-borne Experiment with a Superconducting Spectrometer (BESS) was flown from Lynn Lake, Manitoba, Canada in August, 2000, during the maximum solar modulation period, with an average residual atmospheric overburden of 4.3 g/cm2. Precise spectral measurements of cosmic ray hydrogen isotopes from 0.178 GeV/n to 1.334 GeV/n were made during the 28.7 h of flight. This paper presents the measured energy spectra and their ratio, 2H/1H. The results are also compared with previous measurements and theoretical predictions. |
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| Keywords: | Cosmic rays Isotopes Reacceleration |
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