SH028-0018
Fine structure of the white-light inner corona and the associated magnetic topology

Friday, 11 December 2020
Poster
Yuan-Kuen Ko1, Guillermo Stenborg1, Micah J Weberg2, Jon Linker3, Roberto Lionello3 and Viacheslav S. Titov3, (1)US Naval Research Laboratory, Space Science Division, Washington, DC, United States, (2)National Research Council Postdoctoral Fellow, Naval Research Laboratory, Washington, DC, United States, (3)Predictive Science Inc., San Diego, CA, United States
Abstract:
We present the fine structure of the inner solar corona between 1.65 and 3.0 solar radii as revealed by the STEREO A COR1 white-light coronagraph from June 20 to July 31, 2008. The COR1 imaging data were wavelet-processed to enhance the intensity contrast of coronal features. The constructed limb synoptic maps at a range of altitudes show the evolution in time and altitude of these fine structures within the equatorial streamer belt and the polar coronal hole region during this solar minimum period. The polar plume structures were analyzed for their variation in space and time. We compare the COR1 maps to the MHD-simulated Q-maps and white-light pB maps, and discuss in the context of the slow solar wind formation.

Distribution Statement A. Approved for public release. Distribution is unlimited.

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