Are the EIT waves really waves?

Details Are the EIT waves really waves? Are the EIT waves really waves?

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spd....31.0603d&link_type=abstract

American Astronomical Society, SPD Meeting #31, #06.03; Bulletin of the American Astronomical Society, Vol. 32, p.838

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Scientific paper

One sample of EIT wave is presented and discussed. The bright front of the wave present two parts: one stationnary and one moving arch. The stationnary part of the wave is compared to the magnetic field lines extrapolated in spherical coordinates with the potential assumptions. The stationnary part is located where the footpoints of the separatrixes of the magnetic field are. Another case of a moving arch of an EIT wave is analyzed in conjonction with a numerical simulation of the ejection of a magnetic flux rope. The phenomelogy and the morphology of the both the moving arch and the electric currents created by the ejection of the flux rope are similar. We conclude that the EIT wave phenomenon is possibly related to the generation of electric currents while the magnetic field lines are openning during a coronal mass ejection.

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