Detalles de publicación
PP 09051
On the origin of reverse polarity patches found by Hinode in sunspot penumbrae
((1) Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain,
(2) Departamento de Astrofisica, Universidad de La Laguna,
(3) Kwasan and Hida Observatories, Kyoto University, Kyoto, Japan)
The satellite Hinode has recently revealed penumbral structures with
a magnetic polarity opposite to the main sunspot polarity.
They may be a direct confirmation of magnetic field lines and mass
flows returning to the solar interior throughout the penumbra, a
configuration previously inferred from interpretation
of observed Stokes profile asymmetries. The paper points out
the relationship between the reverse polarity features found by Hinode,
and the model Micro-Structured Magnetic Atmospheres (MISMAs)
proposed for sunspots. We show how the existing model MISMAs
produce strongly redshifted reverse polarity structures as
found by Hinode. Ad hoc model MISMAs also explain the asymmetric
Stokes profiles observed by Hinode. The same modeling may be
consistent with magnetograms of dark cored penumbral filaments
if the dark cores are associated with the reverse polarity.
Such hypothetical relationship will show up only in the far
red wings of the spectral lines.
a magnetic polarity opposite to the main sunspot polarity.
They may be a direct confirmation of magnetic field lines and mass
flows returning to the solar interior throughout the penumbra, a
configuration previously inferred from interpretation
of observed Stokes profile asymmetries. The paper points out
the relationship between the reverse polarity features found by Hinode,
and the model Micro-Structured Magnetic Atmospheres (MISMAs)
proposed for sunspots. We show how the existing model MISMAs
produce strongly redshifted reverse polarity structures as
found by Hinode. Ad hoc model MISMAs also explain the asymmetric
Stokes profiles observed by Hinode. The same modeling may be
consistent with magnetograms of dark cored penumbral filaments
if the dark cores are associated with the reverse polarity.
Such hypothetical relationship will show up only in the far
red wings of the spectral lines.