Prominence and Filament Eruptions Observed by the Solar Dynamics Observatory: Statistical Properties, Kinematics, and Online Catalog

Abstract

We present a statistical study of prominence and filament eruptions observed by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO). Several properties are recorded for 904 events that were culled from the Heliophysics Event Knowledgebase (HEK) and incorporated into an online catalog for general use. These characteristics include the filament and eruption type, eruption symmetry and direction, apparent twisting and writhing motions, and the presence of vertical threads and coronal cavities. Associated flares and white-light coronal mass ejections (CME) are also recorded. Total rates are given for each property along with how they differ among filament types. We also examine the kinematics of 106 limb events to characterize the distinct slow- and fast-rise phases often exhibited by filament eruptions. The average fast-rise onset height, slow-rise duration, slow-rise velocity, maximum field-of-view (FOV) velocity, and maximum FOV acceleration are 83 Mm, 4.4 hours, 2.1 km/s, 106 km/s, and 111 m/s^2, respectively. All parameters exhibit lognormal probability distributions similar to that of CME speeds. A positive correlation between latitude and fast-rise onset height is found, which we attribute to a corresponding negative correlation in the average vertical magnetic field gradient, or decay index, estimated from potential field source surface (PFSS) extrapolations. We also find the decay index at the fast-rise onset point to be 1.1 on average, consistent with the critical instability threshold theorized for straight current channels. Finally, we explore relationships between the derived kinematics properties and apparent twisting motions. We find that events with evident twist have significantly faster CME speeds and significantly lower fast-rise onset heights, suggesting relationships between these values and flux rope helicity.

Accepted by Solar Physics; 40 pages, 20 figures, 5 tables

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Cited by in corpus (15)

• Magnetic Flux Cancellation as the Trigger of Solar Quiet-Region Coronal Jets
• Chirality and Magnetic Configurations of Solar Filaments
• Simultaneous transverse and longitudinal oscillations in a quiescent prominence triggered by a coronal jet
• The formation of an inverse S-shaped active-region filament driven by sunspot motion and magnetic reconnection
• Onset of a Large Ejective Solar Eruption from a Typical Coronal-Jet-Base Field Configuration
• Modelling the Effect of Mass-Draining on Prominence Eruptions
• Spectropolarimetric analysis of an active region filament. I. Magnetic and dynamical properties from single component inversions
• Heating of an erupting prominence associated with a solar coronal mass ejection on 2012 January 27
• Tornado-Like Evolution of A Kink-Unstable Solar Prominence
• Plasma Brightenings in a Failed Solar Filament Eruption
• Increase in the amplitude of line-of-sight velocities of the small-scale motions in a solar filament before eruption
• Current Sheet Structures Observed by the TESIS EUV Telescope During A Flux Rope Eruption on the Sun
• Finding the critical decay index in solar prominence eruptions
• Difference of source regions between fast and slow coronal mass ejections
• High-resolution Observation of Downflows at One End of a Pre-eruption Filament