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Supergranulation and its Activity Dependence

Published online by Cambridge University Press:  12 August 2011

U. Paniveni ,
V. Krishan ,
J. Singh  and
R. Srikanth
U. Paniveni
Affiliation:
Indian Institute of Astrophysics, Bangalore-560034, India NIE Institute of technology, Hootagalli Industrial Area, Mysore-570018, India
V. Krishan
Affiliation:
Indian Institute of Astrophysics, Bangalore-560034, India Raman Research Institute, Sadashiva nagar Bangalore-560080, Karnataka, India
J. Singh
Affiliation:
Indian Institute of Astrophysics, Bangalore-560034, India
R. Srikanth
Affiliation:
Raman Research Institute, Sadashiva nagar Bangalore-560080, Karnataka, India Poornaprajna Institute of Scientific Research, Devanahalli, Bangalore-562 110, India
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Abstract

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We study the complexity of supergranular cells using the intensity patterns obtained at the Kodaikanal solar observatory during the solar maximum. Our data consists of visually identified supergranular cells, from which a fractal dimension D is obtained according to the relation P ∝ AD/2 where A is the area and P is the perimeter of the cells. We find a difference in the fractal dimension between the active and the quiet region cells which is conjectured to be due to the magnetic activity level.

Keywords

Sun: granulation — turbulence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S271: Astrophysical Dynamics: From Stars to Galaxies , June 2010 , pp. 391 - 392
Copyright
Copyright © International Astronomical Union 2011

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