LASCO Measurements of Erupting Flux Ropes

Details LASCO Measurements of Erupting Flux Ropes LASCO Measurements of Erupting Flux Ropes

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19410103v&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #101.03; Bulletin of the American Astronomical Society, Vol. 31, p.998

Astronomy and Astrophysics

Astronomy

Scientific paper

It is commonly assumed that Coronal Mass Ejections from the Sun are magnetically driven. We address this question with data from the LASCO coronagraphs aboard the SOHO spacecraft. These observations provide fairly direct measurements of the energetics of CMEs. We determine the kinetic and gravitational energies and their evolution for several helical CMEs. We estimate the evolution of the magnetic energy based on the conservation of magnetic flux and observations of magnetic clouds near the Earth. From the magnitude and variation of these three forms of energy, we examine the energetics of CMEs from the perspective that they are driven through their internal magnetic energy.

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