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coronal hole |
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coronal hole [kə′rō·nəl ‚hōl] (astronomy) A large-scale, apparently open structure in the solar corona, devoid of any soft x-ray emission and surrounded by diverging boundary structures. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| These dark-appearing, open regions, known as coronal holes, permit solar wind to escape into space. We're seeing some fast winds and think a growing polar coronal hole must be responsible. Robert Rosner of the University of Chicago notes that Kohl's measurements were made in regions known as coronal holes. |
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