Enhanced Joule Heating in Umbral Dots

Details Enhanced Joule Heating in Umbral Dots Enhanced Joule Heating in Umbral Dots

2007-05-08

arxiv.org/abs/0705.1141v2

Astronomy and Astrophysics

Astrophysics

8 pages, 1 figure, accepted in Solar Physics

Scientific paper

10.1007/s11207-007-9052-0

We present a study of magnetic profiles of umbral dots (UDs) and its consequences on the Joule heating mechanisms. Hamedivafa (2003) studied Joule heating using vertical component of magnetic field. In this paper UDs magnetic profile has been investigated including the new azimuthal component of magnetic field which might explain the relatively larger enhancement of Joule heating causing more brightness near circumference of UD.

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