On the deficit problem of mass and energy of solar coronal mass ejections connected with interplanetary shocks

Details On the deficit problem of mass and energy of solar coronal mass ejections connected with interplanetary shocks On the deficit problem of mass and energy of solar coronal mass ejections connected with interplanetary shocks

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...99i&link_type=abstract

Kiev Univ., International Solar Wind 8 Conference, p. 99

Physics

Stellar Mass Ejection, Solar Corona, Shock Waves, Solar Wind, Coronagraphs, Helios 2, Magnetic Storms, Mass Flow, Photometers, Zodiacal Light

Scientific paper

Mean values of a number of parameters of the most powerful coronal mass ejections (CMEs) and interplanetary shocks generated by these ejections are estimated using an analysis of data obtained by the cosmic coronagraphs and spacecrafts, and geomagnetic storm measurements. It was payed attention that the shock mass and mechanical energy, averaging 5 x 1016 grm and 2 x 1032 erg respectively, are nearly 10 times larger than corresponding parameters of the ejections. So, the CME energy deficit problem seems to exist really. To solve this problem one can make an assumption that the process of the mass and energy growth of CMEs during their propagation out of the Sun observed in the solar corona is continued in supercorona too up to distances of 10-30 solar radii. This assumption is confirmed by the data analysis of five events observed using zodiacal light photometers of the HELIOS- I and HELIOS-2 spacecrafts. The mass growth rate is estimated to be equal to (1-7) x 1011 grm/sec. It is concluded that the CME contribution to mass and energy flows in the solar winds probably, is larger enough than the value of 3-5% adopted usually.

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