convection zone

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convection zone

n.
A region of turbulent plasma located within a star, through which energy is transported outward by convection. In a convection zone, hot plasma rises, cools as it recedes from the hot stellar center, and then falls to be heated and rise again.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

convection zone

The outer part of the inside of a star, especially the sun, where energy travels outward to the photosphere through convection. In this layer, hot gas rises, cools as it nears the surface, and falls to be heated and rise again.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive
For this regime, the stratified temperature distribution is observed only in the lower part of the calculated region, and most of the upper region is occupied by the Rayleigh-Bener convection zone, where large vortex structures are observed.
1- broad preheat vaporization zone, 2- thin reaction zone, 3- broad convection zone, where in the preheat zone the temperature of particles is lower than the ignition temperature; therefore, particles start to heat up until mixture temperature reaches to the ignition temperature.
"Researchers have suspected for a long time that sunspot regions are generated in the deep solar interior, but until now the emergence of these regions through the convection zone to the surface had gone undetected," Ilonidis said.
Near the poles it sinks to great depths (all the way to the bottom of the convection zone), returns toward the equator, and rises again.
The Sidewall Scraper creates a forced conduction zone and a forced convection zone while both it and the mill are in operation.
The rising and falling of parcels of charged gas within the sun's convection zone, the outer one-third of its roiling interior, generates a current, which in turn produces a magnetic field.
This implies that seismological activity inside the Sun's convection zone triggers vibrations that create sound waves.
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