Quiet-Region Filament Eruptions

Details Quiet-Region Filament Eruptions Quiet-Region Filament Eruptions

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.1805c&link_type=abstract

American Astronomical Society Meeting 204, #18.05; Bulletin of the American Astronomical Society, Vol. 36, p.683

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We report characteristics of quiescent filament eruptions that did not produce coronal mass ejections (CMEs). It is known that there is a dichotomy of quiescent filament eruptions: those that produce CMEs and those that do not. We examined the quiescent filament eruptions, each of which was located far from disk center (>/= 0.7 RSun) in diffuse remnant magnetic fields of decayed active regions, was well observed in Halpha observations and Fe XII, and had good coronagraph coverage. We present the similarity and differences of two classes of filament eruptions. From their lack of CME production and the appearance of their eruptive motion in Fe XII movies, we conclude that the non-CME-producing filament eruptions are confined eruptions like the confined filament eruptions in active regions. We take the similarity of the confined and eruptive quiescent filament eruptions with their active-region counterparts to favor runaway tether-cutting reconnection for unleashing the magnetic explosion in all these eruptions. The results of this work have been published in Geophysical Research Letters (Geophys. Res. Lett, 30, 2107, 2003).
The work was performed while one of the authors (DPC) held a National Research Council NASA/MSFC Resident Research Associateship.

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