HR: 10:30h
AN: SH22A-01 INVITED     [Abstracts]
TI: Voyager in the Vicinity of the Termination Shock
AU: * Stone, E C
EM: ecs@srl.caltech.edu
AF: Caltech, 220-47 Downs Laboratory , Pasadena, CA 91125 United States
AB: A new low energy component was observed beginning in mid-2002 when Voyager 1 was at 85 AU, suggesting that the spacecraft was in the vicinity of the termination shock. These termination shock particles (TSPs) are present with increased intensity as Voyager 1 approaches 95 AU, indicating this is a durable feature of this region of the heliosphere and not likely the result of occasional transient events. These observations pose a number of questions concerning the spectral differences of TSPs and anomalous cosmic rays, an apparent average anisotropy direction offset from the average magnetic field, the inferred solar wind velocity and lack of magnetic compression, and a TSP source that is radially inward of Voyager 1. These questions and further observations continue to stimulate new analysis and interpretations. This work was supported by NASA under contract NAS7-03001.
DE: 2104 Cosmic rays
DE: 2114 Energetic particles, heliospheric (7514)
DE: 2124 Heliopause and solar wind termination
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2005 Joint Assembly