Expansion speed of Coronal Mass Ejections
Abstract
A large set of limb CMEs has been used to determine the accurate relationship between radial (V rad) and expansion (V exp) speeds of CMEs. It was demonstrated that this relation is exceptionally well described by the function f(w)= 1/2 (1 + cot (w)) representing a full cone model for the CME with a half width, w. We also demonstrated that this relation for the halo CMEs could be very simple V rad = V exp.
- Publication:
-
EGU General Assembly Conference Abstracts
- Pub Date:
- May 2010
- Bibcode:
- 2010EGUGA..12.5142M