Temperature Fluctuations in Photoionized Nebulae in Case of Oxygen and Nitrogen Abundances

S. Belay Goshu; Derck P. Smits

doi:10.4236/am.2015.62041

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Applied Mathematics > Vol.6 No.2, February 2015

Temperature Fluctuations in Photoionized Nebulae in Case of Oxygen and Nitrogen Abundances ()

S. Belay Goshu¹, Derck P. Smits²

¹Department of Physics, Dire-Dawa University, Dire-Dawa, Ethiopia.
²Department of Mathematics, Astronomy and Computing Science, UniSA, Pretoria, South Africa.

DOI: 10.4236/am.2015.62041 PDF HTML XML 2,379 Downloads 2,753 Views

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.

Keywords

H II Region, Planetary Nebulae, Abundances

Share and Cite:

Goshu, S. and Smits, D. (2015) Temperature Fluctuations in Photoionized Nebulae in Case of Oxygen and Nitrogen Abundances. Applied Mathematics, 6, 440-446. doi: 10.4236/am.2015.62041.

Conflicts of Interest

The authors declare no conflicts of interest.

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