Periodic motion along solar filaments

Document Type

Article

Publication Date

6-1-2006

Abstract

We present observations of four filaments that exhibit large-amplitude periodic mass motion. Observations are obtained using the high resolution (2″) and high cadence (1 min) Hα telescope system at the Big Bear Solar Observatory (BBSO). The motions found in these events are along the axis of the filaments, and are associated with the activity of a nearby flare or filament. The most characteristic properties of these motions are long period (≥80 min), large distance (≥ 4 × 104 km) of mass transport at much higher velocity (≥ 30 km s-1) than ever detected from filament motions. The velocity, period, dimension and damping timescale measured for these motions are presented, and discussed to identify the most plausible restoring force and damping mechanism. © Springer 2006.

Identifier

33746100277 (Scopus)

Publication Title

Solar Physics

External Full Text Location

https://doi.org/10.1007/s11207-006-0126-1

e-ISSN

1573093X

ISSN

00380938

First Page

97

Last Page

109

Issue

1

Volume

236

Grant

0342560

Fund Ref

National Science Foundation

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