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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2000
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57100932 |
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Table of Contents:
- Reduced description of light impurities in hydrogen coronal plasmas D. Kh. Morozov V. I. Gervids Física, Astronomía y Matemáticas PLASMAS RADIATION MECHANISMS: THERMAL The theory of radiative impurities in hydrogen plasmas is applied to edge anddivertor plasmas in thermonuclear devices, as well as to interstellar and intergalacticclouds, stellar atmospheres and solar prominences. Radiative impurities are ableto qualitatively change the plasma dynamics. The lead to the appearance of newtypes of equilibria, linear and nonlinear waves, and change signicantly the stabilitycriteria. For full impurity descriptions one needs an extremely cumbersome set ofequations describing each ionization state separately. It is shown that it is possibleto describe light impurities with acceptable accuracy by using only two or threerepresentative ionization states. It is shown that a ve ionization state descriptionmay be reduced to a three ionization state one. Reduced models for light impuritiesand strongly ionized heavy impurities in coronal hydrogen plasmas are proposed.These hold out the possibility of getting analytical results in many cases, as well asto signicantly reducing computation times. A simple set of equations determiningdynamics of impurity distributions over ionization states is derived. 2000 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57100932 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.9