Enhanced Joule Heating in Umbral Dots

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 mag...

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Published in:arXiv.org 2007-05
Main Authors: Joshi, Chandan, Bharti, Lokesh, Jaaffrey, S N A
Format: Article
Language:English
Subjects:
Electric fields
Magnetic fields
Ohmic dissipation
Resistance heating
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Bharti, Lokesh
Jaaffrey, S N A
description 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.
doi_str_mv 10.48550/arxiv.0705.1141
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subjects Electric fields
Magnetic fields
Ohmic dissipation
Resistance heating
title Enhanced Joule Heating in Umbral Dots
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