Mathematics – Logic
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500..621v&link_type=abstract
In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed
Mathematics
Logic
4
Comets, Magnetic Reconnection
Scientific paper
Cometary and solar wind data are compared with the purpose of identifying the solar wind conditions which are associated with comet plasma tail disconnection events (DEs). The cometary data are from The International Halley Watch Atlas of Large-Scale Phenomena. A systematic visual analysis of the atlas images revealed, among other morphological structures, 47 DEs along the plasma tail of comet P/Halley. The solar wind data are in situ measurements from IMP-8, which are used to construct the actual variation of solar wind speed, density and dynamic pressure during the analysed intervals. This work compares the onsets of these DEs with the solar wind dynamic pressure variations in order to clarify if pressure effects play an important role in the formation of DEs and if they can even be considered as the triggering mechanism. The analysis however reveals a poor correlation (23%) between the onsets of P/Halley's DEs and the associated pressure effects.
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