| Issue |
A&A
Volume 369, Number 2, April II 2001
|
|
|---|---|---|
| Page(s) | 643 - 643 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361:20010033 | |
| Published online | 15 April 2001 | |
Spectral signature of uncombed penumbral magnetic fields
Comment
Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
Received:
11
December
2000
Accepted:
13
December
2000
The conservation of magnetic flux demands a magnetic field fine structure as small as 15 km to explain the net circular polarization observed in penumbrae (Sánchez Almeida [CITE]). A recent work by Martínez Pillet ([CITE]) claims that modeling penumbrae as a collection of fluxtubes 100 km wide suffices. We identify several shortcomings of such modeling so that it is presently unclear whether it really contradicts the former conclusion.
Key words: Sun: magnetic fields / sunspots
© ESO, 2001
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