Bibcode
Tsuneta, Saku; Suematsu, Y.; Ichimoto, K.; Shimizu, T.; Katsukawa, Y.; Nagata, S.; Orozco Suarez, D.; Lites, B.; Shine, D.; Tarbell, T.; Title, A.
Referencia bibliográfica
American Astronomical Society Meeting 210, #94.05; Bulletin of the American Astronomical Society, Vol. 39, p.218
Advertised on:
5
2007
Número de citas
1
Número de citas referidas
1
Descripción
Solar polar region is the final destination for remnant magnetic fields
due to meridional flow and granular diffusion, and is very important for
the global solar dynamo. Hinode satellite carried out high-resolution
spectro-polarimetric observations for the Northern pole on 2006 November
22 as a part of its performance verification program. We find ubiquitous
isolated (positive and negative) patches in the Stokes V map (i.e.
fields horizontal to local surface) all over the Arctic circle. The Q
(vertical to local surface) map indicates scattered vertical flux tubes,
which have bipolar feature in the U and V maps. This suggests
canopy-like structure of the strong isolated flux tubes. This will be
compared with equatorial landscape with similar distance from the sun
center. Strong flux tube and weaker ubiquitous horizontal fields as
represented by Stokes V would have implication to the current
understanding of the global and local dynamo.