Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solar small-scale dynamo and polarity of sunspot groups   In order to clarify a possible role of small-scale dynamo in formation of
solar magnetic field, we suggest an observational test for small-scale dynamo
action based on statistics of anti-Hale sunspot groups. As we have shown,
according to theoretical expectations the small-scale dynamo action has to
provide a population of sunspot groups which do not follow the Hale polarity
law, and the density of such groups on the time-latitude diagram is expected to
be independent on the phase of the solar cycle. Correspondingly, a percentage
of the anti-Hale groups is expected to reach its maximum values during solar
minima. For several solar cycles, we considered statistics of anti-Hale groups
obtained by several scientific teams, including ours, to find that the
percentage of anti-Hale groups becomes indeed maximal during a solar minimum.
Our interpretation is that this fact may be explained by the small-scale dynamo
action inside the solar convective zone.

23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs