On the fine structure of magnetic fields in sunspot penumbrae

Recent observations have revealed the interlocking-comb structure of the magnetic field in the outer penumbra of a sunspot. We have argued that this structure owes its origin in part to downward pumping of magnetic flux by vigorous granular convection in the region surrounding the spot. Here we stre...

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Published in:Astronomy and astrophysics (Berlin) 2006-06, Vol.452 (3), p.1089-1090
Main Authors: Thomas, J. H., Weiss, N. O., Tobias, S. M., Brummell, N. H.
Format: Article
Language:English
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Astronomy
Earth, ocean, space
Exact sciences and technology
Sun: magnetic fields
sunspots
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description Recent observations have revealed the interlocking-comb structure of the magnetic field in the outer penumbra of a sunspot. We have argued that this structure owes its origin in part to downward pumping of magnetic flux by vigorous granular convection in the region surrounding the spot. Here we stress the difference between the inner and outer penumbra, and correct some misleading assertions in a recent paper by Spruit & Scharmer.
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ispartof Astronomy and astrophysics (Berlin), 2006-06, Vol.452 (3), p.1089-1090
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subjects Astronomy
Earth, ocean, space
Exact sciences and technology
Sun: magnetic fields
sunspots
title On the fine structure of magnetic fields in sunspot penumbrae
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