HR: 18:05h
AN: SM34A-08    [Abstracts]
TI: Interplanetary Magnetic Flux Enhancements in the Inner Solar System: Possible Remote Observation of comet McNaught
AU: * Russell, C T
EM: ctrussell@igpp.ucla.edu
AF: Institute of Geophysics, University of California 405 Hilgard Ave, Los Angeles, CA 90095-1567, United States
AU: Luhmann, J G
EM: jgluhman@ssl,berkeley.edu
AF: Space Science Laboratory, University of Berkeley 7 Gauss Way, Berkeley, CA 94720, United States
AU: Szabo, A
EM: Adam.Szabo-1@nasa.gov
AF: NASA/GSFC, Code 696, Greenbelt, MD 20771, United States
AB: The asteroid, 2201 Oljato, that crosses the orbit of Venus, was found to be associated with a series of sharply peaked magnetic disturbances both ahead and behind its three inferior conjunction with Venus during the Pioneer Venus mission. Ulysses saw similar disturbances one of which was identified with comet 122P/De Vico (Jones et al 2003). These events have been interpreted as signifying the interaction of the solar wind with charged dust particles produced along their orbits by asteroids and comets. During the passage of an ICME on December 15, 2006 STEREO A and B, Wind and ACE detected a magnetic disturbance that was very unusual, lasting a length of time similar to previously observed IFEs, but different in that it lacked a compressional signature. At the time of observation STEREO A and B, Wind and ACE were crossing the orbit plane of comet McNaught that was approaching perihelion well within IAU. Comet McNaught was not aligned with the spacecraft. This disturbance would have to be caused an interaction with the dust trail and not the nucleus or coma itself.
DE: 2101 Coronal mass ejections (7513)
DE: 2756 Planetary magnetospheres (5443, 5737, 6033)
DE: 6023 Comets: dust tails and trails (6210)
DE: 6025 Interactions with solar wind plasma and fields
DE: 7513 Coronal mass ejections (2101)
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Joint Assembly