Comparison of CME masses and kinetic energies near the Sun and in the inner heliosphere

Details Comparison of CME masses and kinetic energies near the Sun and in the inner heliosphere Comparison of CME masses and kinetic energies near the Sun and in the inner heliosphere

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...97w&link_type=abstract

Boston Coll., International Solar Wind 8 Conference, p. 97

Physics

3

Solar Corona, Stellar Mass, Stellar Mass Ejection, Sun, Solar Cycles, Heliosphere, Kinetic Energy, Mass Distribution, Energy Distribution, Solar Physics, Astronomical Photometry, Zodiacal Light, Ulysses Mission, Helios Satellites, International Sun Earth Explorer 3, Coronagraphs, Velocity Measurement

Scientific paper

Masses have now been determined for many of the CMEs observed in the inner heliosphere by the HELIOS 1 and 2 zodiacal light photometers. The speed of the brightest material of each CME has also been measured so that, for events having both mass and speed determinations, the kinetic energies of the CMEs are estimated. We compare the masses and kinetic energies of the individual CMEs measured in the inner heliosphere by HELIOS and near the Sun from observations by the SOLWIND (1979-1983) and SMM coronagraphs (1980). Where feasible we also compare the speeds of the same CMEs. We find that the HELIOS masses and energies tend to be somewhat larger by factors of 2-5 than those derived from the coronagraph data. We also compare the distribution of the masses and energies of the HELIOS and coronagraph CMEs over the solar cycle. These results provide an important baseline for observations of CMEs from coronagraphs, from the ISEE-3/ICE, WIND and Ulysses spacecraft and in the future from SOHO.

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