Sequential Chomospheric Brightening: An Automated Approach to Extracting Physics from Ephemeral Brightening
Abstract
We make a comparison between small scale chromospheric brightenings and energy release processes through examining the temporal evolution of sequential chromospheric brightenings (SCBs), derive propagation velocities, and propose a connection of the small-scale features to solar flares. Our automated routine detects and distinguishes three separate types of brightening regularly observed in the chromosphere: plage, flare ribbon, and point brightenings. By studying their distinct dynamics, we separate out the flare-associated bright points commonly known as SCBs and identify a propagating Moreton wave. Superimposing our detections on complementary o -band images, we extract a Doppler velocity measurement beneath the point brightening locations. Using these dynamic measurements, we put forward a connection between point brightenings, the erupting flare, and overarching magnetic loops. A destabilization of the pre-flare loop topology by the erupting flare directly leads to the SCBs observed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 17, 2012
- Accession Number
- ADA576452
Entities
People
- Bernie J. Mcnamara
- Jason Jackiewicz
- K. S. Balasubramaniam
- Michael S. Kirk
- R. T. James McAteer
Organizations
- New Mexico State University