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Possibility to explain the temperature distribution in sunspots by an anisotropic heat transfer

Abstract

Numerical solutions of a heat conduction problem in an anisotropic medium are used for a discussion of the possibility to explain the temperature distribution in sunspots and their environment. The anisotropy is assumed being due to the strong magnetic field in sunspots and the region below. This magnetic field forces the convection to take an anisotropic structure (two-dimensional turbulence) and thus the region gets anisotropic conduction properties, on the average. The discussion shows that the observed temperature profiles can be explained in the case the depth of the region of anisotropy is about as large as the diameter of the spot or larger.
Authors:
Eschrich, K O; Krause, F [1] 
  1. Akademie der Wissenschaften der DDR, Potsdam. Zentralinstitut fuer Astrophysik
Publication Date:
Jan 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-09-377604; EDB-78-111551
Resource Relation:
Journal Name: Astron. Nachr.; (German Democratic Republic); Journal Volume: 298:1
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUNSPOTS; THERMAL CONDUCTION; ANISOTROPY; MAGNETIC FIELDS; NUMERICAL SOLUTION; SPATIAL DISTRIBUTION; STRUCTURAL MODELS; ULTRAHIGH TEMPERATURE; DISTRIBUTION; ENERGY TRANSFER; HEAT TRANSFER; SOLAR ACTIVITY; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
6732365
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: ASNAA
Submitting Site:
INIS
Size:
Pages: 1-8
Announcement Date:

Citation Formats

Eschrich, K O, and Krause, F. Possibility to explain the temperature distribution in sunspots by an anisotropic heat transfer. Germany: N. p., 1977. Web. doi:10.1002/asna.19772980102.
Eschrich, K O, & Krause, F. Possibility to explain the temperature distribution in sunspots by an anisotropic heat transfer. Germany. doi:10.1002/asna.19772980102.
Eschrich, K O, and Krause, F. 1977. "Possibility to explain the temperature distribution in sunspots by an anisotropic heat transfer." Germany. doi:10.1002/asna.19772980102. https://www.osti.gov/servlets/purl/10.1002/asna.19772980102.
@misc{etde_6732365,
title = {Possibility to explain the temperature distribution in sunspots by an anisotropic heat transfer}
author = {Eschrich, K O, and Krause, F}
abstractNote = {Numerical solutions of a heat conduction problem in an anisotropic medium are used for a discussion of the possibility to explain the temperature distribution in sunspots and their environment. The anisotropy is assumed being due to the strong magnetic field in sunspots and the region below. This magnetic field forces the convection to take an anisotropic structure (two-dimensional turbulence) and thus the region gets anisotropic conduction properties, on the average. The discussion shows that the observed temperature profiles can be explained in the case the depth of the region of anisotropy is about as large as the diameter of the spot or larger.}
doi = {10.1002/asna.19772980102}
journal = {Astron. Nachr.; (German Democratic Republic)}
volume = {298:1}
journal type = {AC}
place = {Germany}
year = {1977}
month = {Jan}
}