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Analysis and Modeling of Coronal Holes Observed by CORONAS-1Two low-latitude coronal holes observed by CORONAS-1 in April and June 1994 are analyzed together with magnetic field measurements obtained from Wilcox and Kitt Peak Solar Observatories. To estimate the comparable temperature of these two coronal holes, the YOHKOH observations are also utilized. Using this information, we have constructed three-dimensional magnetic field lines to illustrate the geometrical configuration of these coronal holes. The calculated synoptic maps are used to determine the existence of closed and open field regions of the hole. Finally, we have correlated the characteristics of two coronal holes with observed solar wind speed. We found that the brighter coronal hole has high speed solar wind, and the dimmer coronal hole has low speed solar wind.
Document ID
19990077368
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Obridko, Vladmir
(NASA Marshall Space Flight Center Huntsville, AL United States)
Formichev, Valery
(NASA Marshall Space Flight Center Huntsville, AL United States)
Kharschiladze, A. F.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Zhitnik, Igor
(NASA Marshall Space Flight Center Huntsville, AL United States)
Slemzin, Vladmir
(NASA Marshall Space Flight Center Huntsville, AL United States)
Hathaway, David H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Wu, Shi T.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1998
Subject Category
Solar Physics
Distribution Limits
Public
Copyright
Other

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