Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsa41b..02b&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SA41B-02
Physics
7509 Corona, 7513 Coronal Mass Ejections, 6982 Tomography And Imaging, 3220 Nonlinear Dynamics, 3260 Inverse Theory
Scientific paper
We present the results of a study aimed at investigating the response of the three-dimensional solar corona to the extreme solar events of October and November 2003. Three-dimensional images of the electron density (Ne) in the solar corona between 1.1 and 2.7 R&sun; are formed from polarized brightness (pB) coronagraph measurements by the process of solar rotational tomography. Since each pixel of a coronagraph image represents a line of sight (LOS) integration of Ne, an inversion of the LOS measurements is required to reconstruct Ne. Solar rotational tomography exploits the Sun's rotation to combine a set of coronagraph images each measured at a different view angle to perform the required inversion and form the three-dimensional image of Ne. In this work, we focus on ground-based measurements obtained from the Mark-IV K-Coronameter at the Mauna Loa Solar Observatory (MLSO). The response of the corona to the extreme solar events is studied by comparing the Ne reconstructions determined at periods before, during, and after the onset of the superstorms.
Butala M. D.
Frazin Richard A.
Kamalabadi Farzad
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