Speaker
Kirill Kuzanyan
(IZMIRAN, Russia)
Description
We study observational proxies of magnetic helicity (and the
alpha effect) in the Sun
by analysis of photospheric vector magnetograms. The newest
finding is determination
of anisotropy of helicity near the solar surface. We can
demonstrate that assumptions
of local homogeneity and isotropy require serious revision
in the light of these
findings. Furthermore, we can show that rotation can cause
this significant anisotropy.
Furthermore, we can speculate how the methods developed for
computation of
large-scale helicity in the Sun can be applied for
computation of helicity proxies in
the stars for which magnetic patterns are available with
sufficient cadence.
Primary author
Kirill Kuzanyan
(IZMIRAN, Russia)
Co-authors
Prof.
Dmitry Sokoloff
(Moscow University)
Dr
Haiqing Xu
(NAOC Beijing, China)
Dr
Hongqi Zhang
(NAOC Beijing, China)
Dr
Rodion Stepanov
(ICMM Perm)
