Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spnr.conf...81g&link_type=abstract
Solar Physics with the Nobeyama Radioheliograph, Proceedings of Nobeyama Symposium 2004, held in Kiyosato, Japan, October 26- 29
Physics
1
Scientific paper
Coronal mass ejections (CMEs) are composed of multithermal plasmas, which make them produce different radio signatures at different wavelengths. The prominence core of CMEs are of the lowest temperature and hence optically thick at microwave frequencies and hence are readily observed. The Nobeyama Radioheliograph has exploited this fact and observed a large number of prominence eruptions over most of solar cycle 23 and parts of cycle 22. This paper reviews recent studies on prominence eruptions and their contributions for understanding the CME phenomenon. In particular, the following issues are discussed: (i) the statistical and physical relationship between CMEs and the radio prominence eruptions, and how this relationship manifests as a function of the solar cycle; (ii) The asymmetry of prominence eruptions between northern and southern hemispheres; (iii) the relationship between prominence eruptions and CME cores; (iv) the implications of the cessation of high-latitude PEs before the reversal of the global solar magnetic field, and (v) the implications of the high-latitude PEs and CMEs for the modulation of galactic cosmic rays. Finally, the importance of the Nobeyama Radioheliograph data to future missions such as STEREO and Solar-B are discussed.
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