HR: 1340h
AN: SH53B-0331    [Abstracts]
TI: Geometry of Interplanetary CME Deduced from Cosmic Rays
AU: * Kuwabara, T
EM: t02h107@amail.shinshu-u.ac.jp
AF: Physics Department, Shinshu University, 3-1-1 Asahi, Matsumoto, 390-8621 Japan
AU: Munakata, K
EM: kmuna00@gipac.shinshu-u.ac.jp
AF: Physics Department, Shinshu University, 3-1-1 Asahi, Matsumoto, 390-8621 Japan
AU: Yasue, S
EM: shyasue@gipac.shinshu-u.ac.jp
AF: Physics Department, Shinshu University, 3-1-1 Asahi, Matsumoto, 390-8621 Japan
AU: Kato, C
EM: ckato@corona.shinshu-u.ac.jp
AF: Physics Department, Shinshu University, 3-1-1 Asahi, Matsumoto, 390-8621 Japan
AU: Bieber, J
EM: john@bxclu.bartol.udel.edu
AF: Bartol Research Institute, University of Delaware, Newark, 19716 United States
AU: Evenson, P
EM: penguin@bartol.udel.edu
AF: Bartol Research Institute, University of Delaware, Newark, 19716 United States
AU: Pyle, R
EM: pyle@bartol.udel.edu
AF: Bartol Research Institute, University of Delaware, Newark, 19716 United States
AU: Fujii, Z
EM: fujii@stelab.nagoya-u.ac.jp
AF: Solar-Terrestrial Environment Laboratory, Nagoya University, Furou-cho, Chikusa-ku, Nagoya, 464-8601 Japan
AU: Tokumaru, M
EM: tokumaru@stelab.nagoya-u.ac.jp
AF: Solar-Terrestrial Environment Laboratory, Nagoya University, Furou-cho, Chikusa-ku, Nagoya, 464-8601 Japan
AU: Kojima, M
EM: kojima@stelab.nagoya-u.ac.jp
AF: Solar-Terrestrial Environment Laboratory, Nagoya University, Furou-cho, Chikusa-ku, Nagoya, 464-8601 Japan
AU: Marubashi, K
EM: k.marubashi@eos.ocn.ne.jp
AF: National Institute of Information and Communications Technology, 4-2-1 Nukii-kita-cho, Koganei, 184-8795 Japan
AU: Duldig, M
EM: marc.duldig@aad.gov.au
AF: Australian Antarctic Division, Channel Highway, Kingston, Tasmania, 7050 Australia
AU: Humble, J
EM: john.humble@utas.edu.au
AF: School of Mathematics and Physics, University of Tasmania, GPO Box 252C, Hobart, Tasmania, 7001 Australia
AU: Silva, M
EM: marlos@lacesm.ufsm.br
AF: Southern Regional Space Research Center, National Institute for Space Research (OES/CRSPE/INPE), P.O.Box 5021, Santa Maria, 97110-970 Brazil
AU: Trivedi, N
EM: trivedi@lacesm.UFSM.br
AF: Southern Regional Space Research Center, National Institute for Space Research (OES/CRSPE/INPE), P.O.Box 5021, Santa Maria, 97110-970 Brazil
AU: Gonzalez, W
EM: gonzalez@dge.inpe.br
AF: Southern Regional Space Research Center, National Institute for Space Research (OES/CRSPE/INPE), P.O.Box 5021, Santa Maria, 97110-970 Brazil
AU: Schuch, N
EM: njschuch@aries.lacesm.ufsm.br
AF: Southern Regional Space Research Center, National Institute for Space Research (OES/CRSPE/INPE), P.O.Box 5021, Santa Maria, 97110-970 Brazil
AB: A coronal mass ejection (CME) associated with an X17 solar flare reached Earth on October 29, 2003, causing an $\sim$ 11 % decrease in the intensity of high-energy Galactic cosmic rays recorded by muon detectors. The CME also produced a strong enhancement of the cosmic ray directional anisotropy. Based upon a simple inclined cylinder model, we use the anisotropy data to derive for the first time the three-dimensional geometry of the cosmic ray depleted region formed behind the shock in this event. We also compare the geometry derived from cosmic rays with that derived from in situ interplanetary magnetic field (IMF) observations using a Magnetic Flux Rope model. We also will analyze other events with the same model and discuss the geometry of the depleted region in each event.
DE: 2104 Cosmic rays
DE: 2111 Ejecta, driver gases, and magnetic clouds
DE: 2114 Energetic particles, heliospheric (7514)
DE: 2118 Energetic particles, solar
DE: 2164 Solar wind plasma
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting