Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh31b1800s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH31B-1800
Astronomy and Astrophysics
Astrophysics
[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7524] Solar Physics, Astrophysics, And Astronomy / Magnetic Fields
Scientific paper
A systematic comparison of the empirically measured root locations of coronal streamers at the photosphere is compared with the corresponding locations as derived by PFSS model extrapolations from the source surface back to the photosphere. The method of empirically deriving the root location of observed streamers is an adaptation of the method applied by Liewer et al (2001) to a limited sample of Carrington rotations using LASCO observations. We automate this procedure and make use of LASCO, STEREO, EIT, and AIA image archives to produce a much larger set of comparisons between PFSS extrapolations and empirical observations. Using this expanded database of PFSS to actual streamer locations, we draw conclusions about the reliability of the PFSS method in modeling the large scale magnetic structure of the corona far from the photosphere.
Nitta Nariaki V.
Slater Gary L.
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