Spectral signature of uncombed penumbral magnetic fields
Open Access
- 15 April 2001
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 369 (2) , 643
- https://doi.org/10.1051/0004-6361:20010033
Abstract
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.Keywords
This publication has 1 reference indexed in Scilit:
- Optically Thin Irregularities in the Penumbrae of SunspotsThe Astrophysical Journal, 1998