Abstract
We present the dependence of electron temperature fluctuations of O++ and H+ by the chemical abundances of oxygen and nitrogen. Models assume that hydrogen density is uniform in one case and non uniform in the second case, which vary with the distance from the central star. The abundances of oxygen and nitrogen change by scale factor 5 and 1/5. Our analysis suggests that temperature fluctuations are consistent with photoionization. Using the cloudy photoionization code, we found a reasonable close agreement of the computed value with the one that was done before this work. Our simulation also shows that how change of abundances affects temperature fluctuations and its value is less than 0.01.
Highlights
Accurate abundances of heavy metals are essential for solving astrophysical problems, including stellar and galactic chemical evolution
The problem of the existence of temperature fluctuations in H II regions was first noted by [2], suggested that those measured in ionized gaseous nebulae depend on the ionization radiation field, hydrogen density and elemental abundances
This result of this paper strongly suggests that abundances change produce temperature fluctuations
Summary
Accurate abundances of heavy metals are essential for solving astrophysical problems, including stellar and galactic chemical evolution. This was tested by different authors like [1]. The abundances of H, He, C, O, N, Ne, S, and Ar are included to determine the temperature fluctuations of electron by changing the abundances of oxygen and nitrogen elements by scale factor 5 and 0.2. These are the most important elements which have a great impact on cooling.
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