Title: Understanding the Dynamic Behavior of Sigmoidal Active Regions |
Type of Project: Data analysis
Skills/Interest Required: Interest in analyzing space-based observations for a large
data sample. No advanced programming skills required. The data analysis will be performed primarily using IDL.
Mentor: Dr. Ed DeLuca and Ms. Antonia Savcheva
Sigmoidal active regions show a characteristic S (or inverse S) shape when
observed in X-rays. Such regions have been shown to produce the majority of
solar eruptions. Hence, it is vital that we understand the formation,
evolution, and eruption mechanism of these regions.
The project will consist
in compiling a catalogue of sigmoidal regions that have been observed with
the X-ray telescope on Hinode and SDO/AIA. The behavior of such regions will
be classified and they will be separated in groups depending on their
evolution in the HMI magnetograms. A key part of the project will be the
identification and description of any eruptive behavior in the active
region. The project will involve processing XRT, AIA image data and HMI
magnetograms. The student will learn about the formation and evolution of
active region sigmoids.
Figure 1: X-ray images (left) and magnetic models (right) of an evolving sigmoid.