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

Autor:	S. Belay Goshu, Derck P. Smits
Rok vydání:	2015
Předmět:	Work (thermodynamics) H II region chemistry.chemical_element General Medicine Photoionization Scale factor Nitrogen Planetary nebula Oxygen chemistry Electron temperature Atomic physics Astrophysics::Galaxy Astrophysics Mathematics
Zdroj:	Applied Mathematics. :440-446
ISSN:	2152-7393 2152-7385
DOI:	10.4236/am.2015.62041
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::416b96cb519e84cf062dae6f68cce667 https://doi.org/10.4236/am.2015.62041 Zobrazit plný text záznamu