Two spectra of turbulence of the sun

Autor: R. I. Kostyk, Oleg K. Cheremnykh, L.V. Kozak
Rok vydání: 2013
Předmět:
Zdroj: Kinematics and Physics of Celestial Bodies. 29:66-70
ISSN: 1934-8401
0884-5913
DOI: 10.3103/s0884591313020050
Popis: Observations obtained at the 70-cm vacuum tower telescope (VTT) at Izana (Tenerife, Spain) are analyzed to show that turbulent processes in the solar photosphere have two distinct spectra of turbulence. The first is the well-known Kolmogorov spectrum, which describes plasmas with a zero mean magnetic field, and the second is the Kraichnan spectrum with a nonzero mean magnetic field. The transition from one spectrum type to another is found to occur at a scale of 3 Mm. This scale is consistent with the typical size of mesogranular structures, which indicates a transition to large-scale self-organizing magnetic structures.
Databáze: OpenAIRE
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