Energetics of Coronal Mass Ejections

Details Energetics of Coronal Mass Ejections Energetics of Coronal Mass Ejections

2005-02-03

arxiv.org/abs/astro-ph/0502057v1

Astronomy and Astrophysics

Astrophysics

To appear in proceedings of IAU Symposium 226, Coronal and Stellar Mass Ejections, Sept 13-17 2004, Beijing

Scientific paper

10.1017/S1743921305000797

We examine the energetics of the best examples of flux-rope CMEs observed by LASCO in 1996-2001. We find that 69% of the CMEs in our sample experience a driving power in the LASCO field of view. For these CMEs which are driven, we examine if they might be deriving most of their driving energy by coupling to the solar wind. We do not find conclusive evidence to support this hypothesis. We adopt two different methods to estimate the energy that can possibly be released by the internal magnetic fields of the CMEs. We find that the internal magnetic fields are a viable source of driving power for these CMEs.

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