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Observational Analysis of Coronal FansCoronal fans (see Figure 1) are bright observational structures that extend to large distances above the solar surface and can easily be seen in EUV (174 angstrom) above the limb. They have a very long lifetime and can live up to several Carrington rotations (CR), remaining relatively stationary for many months. Note that they are not off-limb manifestation of similarly-named active region fans. The solar conditions required to create coronal fans are not well understood. The goal of this research was to find as many associations as possible of coronal fans with other solar features and to gain a better understanding of these structures. Therefore, we analyzed many fans and created an overview of their properties. We present the results of this statistical analysis and also a case study on the longest living fan.
Document ID
20170008533
Acquisition Source
Marshall Space Flight Center
Document Type
Presentation
Authors
Talpeanu, D.-C. (Royal Observatory Brussels, Belgium)
Rachmeler, L (NASA Marshall Space Flight Center Huntsville, AL United States)
Mierla, Marilena (Royal Observatory Brussels, Belgium)
Date Acquired
September 7, 2017
Publication Date
September 4, 2017
Subject Category
Solar Physics
Report/Patent Number
MSFC-E-DAA-TN45991
Meeting Information
Meeting: European Solar Physics Meeting
Location: Budapest
Country: Hungary
Start Date: September 4, 2017
End Date: September 8, 2017
Sponsors: European Physical Society
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Corona
Solar
Heating

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