Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...437..699d&link_type=abstract
Astronomy and Astrophysics, Volume 437, Issue 2, July II 2005, pp.699-702
Astronomy and Astrophysics
Astrophysics
13
Sun: Magnetic Fields, Methods: Numerical
Scientific paper
Using two distinct simulation codes that respectively apply semi-implicit and fully explicit schemes, we perform calculations of a 2D kinematic Babcock-Leighton type flux-transport dynamo with Chatterjee et al.'s parameter settings. We show that their solutions are diffusion-dominated, rather than circulation-dominated as their title implies. We also have been unable to reproduce several properties of their dynamo solutions, namely we obtain a much faster cycle with ~ 4 times shorter period than theirs, with highly overlapping cycles; a polar field value of ˜ 2 kG if one has to produce a ~ 100 kG toroidal field at convection zone base; and quadrupolar parity as opposed to Chatterjee et al.'s dipolar parity solutions.
Dikpati Mausumi
Gilman Peter A.
MacGregor Keith B.
Rempel Matthias
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