Electric current density in the sunspot photosphere derived from vector magnetograms

Title:

Electric current density in the sunspot photosphere derived from vector magnetograms

Creator:

Hofmann, A. and Staude, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f7c73848-effb-4ee6-8683-23f218b92b96
uuid:f7c73848-effb-4ee6-8683-23f218b92b96

Subject:

sunspot photosphere, magnetograms, and electric current density

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We present observational results from which we can determine azimuthal currents flowing across the magnetic field. Simple relations between the vertical current densities and the inclinations of the field are used to separate from each other the field-aligned component and the azimuthal component of current density. For a relatively isolated flux bundle we obtain a total azimuthal current density of (7.8 ± 3,6)' 10-2 Am-2 and an azimuthal current of (6,5 ± 3.0)‘ 10^^ A. The density of the Lorentz force acting amounts up to 1,1 -10-3 Nm-3.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

105-107

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 1987 Volume:63-70 | Number:66

Harvested from:

CDK

Metadata only:

false