Accession Number:

ADA576452

Title:

Sequential Chomospheric Brightening: An Automated Approach to Extracting Physics from Ephemeral Brightening

Descriptive Note:

Technical paper 15 Jun 2010-6 Mar 2012

Corporate Author:

NEW MEXICO STATE UNIV LAS CRUCES DEPT OF ASTRONOMY

Report Date:

2012-10-17

Pagination or Media Count:

12.0

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.

Subject Categories:

  • Astrophysics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE