July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

An estimation of the diffusion coefficient of galactic cosmic rays in the heliosphere near the Earth.

Aug 4, 2015, 12:15 PM
15m
Mississippi (World Forum)

Mississippi

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution SH-EX Parallel SH 06 Cycle & AMS

Speaker

Dr Akitoshi Oshima (Chubu University, Aichi, Japan)

Description

From the density gradient of galactic cosmic rays derived from the Swinson flow and the regression coefficients between the intensity variations of cosmic rays and the solar wind velosity, we have derived the diffusion coefficient and the scattering mean free path of galactic cosmic rays in the heliosphere near the Earth. In this analysis we have used the data obtained by the large area muon tracking detectors of GRAPES-3 and assumed the simplified diffusion-convection equation of cosmic rays in the heliosphere. We will explane the method we have adopted in the estimation of the diffusion coefficient and the scattering mean free path of galactic cosmic rays in this paper.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 170

Primary author

Co-authors

Dr Akitoshi Oshima (Chubu University, Aichi, Japan) Mr Atul Jain (Tata Institute of Fundamental Research, Mumbai, India) Mr B.S Rao (Tata Institute of Fundamental Research, Mumbai, India) Prof. H.M Antia (Tata Institute of Fundamental Research, Mumbai, India) Prof. Hisanori Takamaru (Chubu University, Aichi, Japan) Prof. Isao Morishita (Asahi University, Aichi, Japan) Dr Katsuya Yamazaki (Osaka City University, Osaka, Japan) Prof. Koichi Tanaka (Hiroshima City University, Hiroshima, Japan) Prof. Munetoshi Tokumaru (Solar-Terrestrial Environment Laboratory, Nagoya University Furo-cho, Aichi, Japan) Prof. Nobuo Ito (Osaka City University, Osaka, Japan) Dr P.K Mohanty (Tata Institute of Fundamental Research, Mumbai, India) Prof. S.K Gupta (Tata Institute of Fundamental Research, Mumbai, India) Prof. S.R Dugad (Tata Institute of Fundamental Research, Mumbai, India) Prof. Saburo Kawakami (Osaka City University, Osaka, Japan) Prof. Shoichi Ogio (Osaka City University, Osaka, Japan) Prof. Shoichi Shibata (Chubu University, Aichi, Japan) Prof. Toru Nakamura (Kochi University, Kochi, Japan) Mr Toshio Matsuyama (Osaka City University, Osaka, Japan) Dr Toshiyuki Nonaka (Institute of Cosmic Ray Research, Chiba, Japan) Prof. Yoshio Hayashi (Osaka City University, Osaka, Japan)

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