HR: 11:15h
AN: SH22A-04    [Abstracts]
TI: Large-Scale Structure of the Heliosphere: the Impact of Recent Observations
AU: * Jokipii, J R
EM: jokipii@lpl.arizona.edu
AF: Dept. of Planetary Sciences, University of Arizona, Tucson, AZ 85721
AU: Giacalone, J
EM: giacalon@lpl.arizona.edu
AF: Dept. of Planetary Sciences, University of Arizona, Tucson, AZ 85721
AU: Kota, J
EM: kota@lpl.arizona.edu
AF: Dept. of Planetary Sciences, University of Arizona, Tucson, AZ 85721
AB: Recent observations from the Voyager 1 spacecraft as it approaches the heliospheric termination shock, and other data, have led to a more detailed confrontation between theory and observations of the interaction of the solar wind with the interstellar medium. The issues arising in this confrontation have provided new and important constraints on the structure of the heliosphere and on the basic physics of charged-particle acceleration at collisionless shocks propagating in a turbulent astrophysical plasma. Of particular relevance is the energetic particle streaming anisotropy, which has a sensitive dependence on the large and small scale structure of the termination shock and any lateral asymmetry. Constraints imposed by the observed anisotropies will be discussed. Factors affecting the large-scale structure and lateral asymmetry of the heliosphere, such as the very local interstellar magnetic field will also be discussed.
DE: 2104 Cosmic rays
DE: 2124 Heliopause and solar wind termination
DE: 7851 Shock waves
DE: 7859 Transport processes
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2005 Joint Assembly