Saha Equation Normalized to Total Atomic Number (trac #238)

[cloudy-bot]

reported by: @CloudyLex

Title:  
    Saha Equation Normalized to Total Atomic Number
Authors:    
    Fowler, John W.
Publication:    
    eprint arXiv:1209.1111
Publication Date:   
    09/2012
Origin: 
    ARXIV
Keywords:   
    Astrophysics - Solar and Stellar Astrophysics, Physics - Atomic Physics
Comment:    
    4 pages
Bibliographic Code: 
    2012arXiv1209.1111F
Abstract
The Saha equation describes the relative number density of 
consecutive ionization levels of a given atomic species under 
conditions of thermodynamic equilibrium in an ionized gas. Because 
the number density in the denominator may be very small, special 
steps must be taken to ensure numerical stability. In this paper we 
recast the equation into a form in which each ionization fraction 
is normalized by the total number density of the atomic species, 
analogous to the Boltzmann equation describing the distribution of 
excitation states for a given ion. 

Migrated from https://www.nublado.org/ticket/238

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    "changetime": "2019-02-04T13:07:06Z",
    "_ts": "1549285626580696",
    "description": "{{{\nTitle:\t\n\tSaha Equation Normalized to Total Atomic Number\nAuthors:\t\n\tFowler, John W.\nPublication:\t\n\teprint arXiv:1209.1111\nPublication Date:\t\n\t09/2012\nOrigin:\t\n\tARXIV\nKeywords:\t\n\tAstrophysics - Solar and Stellar Astrophysics, Physics - Atomic Physics\nComment:\t\n\t4 pages\nBibliographic Code:\t\n\t2012arXiv1209.1111F\nAbstract\nThe Saha equation describes the relative number density of \nconsecutive ionization levels of a given atomic species under \nconditions of thermodynamic equilibrium in an ionized gas. Because \nthe number density in the denominator may be very small, special \nsteps must be taken to ensure numerical stability. In this paper we \nrecast the equation into a form in which each ionization fraction \nis normalized by the total number density of the atomic species, \nanalogous to the Boltzmann equation describing the distribution of \nexcitation states for a given ion. \n}}}",
    "reporter": "gary",
    "cc": "",
    "resolution": "",
    "time": "2012-09-09T10:58:51Z",
    "component": "literature",
    "summary": "Saha Equation Normalized to Total Atomic Number",
    "priority": "good to do",
    "keywords": "",
    "version": "trunk",
    "milestone": "no milestone",
    "owner": "nobody",
    "type": "physics"
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[cloudy-bot]

@peter-van-hoof-noaccount changed milestone from "" to "no milestone"