Initiation of a coronal mass ejection

Details Initiation of a coronal mass ejection Initiation of a coronal mass ejection

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2877z&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 18, p. 2877-2880

Astronomy and Astrophysics

Astrophysics

3

Solar Physics, Astrophysics, And Astronomy, And Astronomy: Coronal Mass Ejections

Scientific paper

There are by now only one or two examples to show the initiation of coronal mass ejections (CMEs). In this paper we present a clear instance of a CME initiation. The enhanced disturbance was seen as the slow upward motion in segments of a prominence. Four hours later, the prominence was accelerated to about 60 km s-1. It greatly expanded, showing twisted structure, in later one hour. The CME onset was characterized as the disrupting and opening of the prominence. During the onset phase of the CME, a nearby small prominence erupted. It appeared that the global instability responsible for the CME was triggered by the initial mass ejection of the first prominence.

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