Astronomical School’s Report, 2012, Volume 8, Issue 1, Pages 101–103

https://doi.org/10.18372/2411-6602.08.1101
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UDC [524.37+524.5+524.7](076.5)

Method of multi-stage seek for models of high-metallicity nebular objects' emission

Melekh B.Ya., Gavrylova N.V., Sokil M.M.

Ivan Franko National University of Lviv, Ukraine

Abstract

The new 3-stages method for the chemical composition and physical parameters of high-metallicity nebular objects determination was investigated. It's based on calculations of the optimization photoionization models (OPhMs) of these objects with using diagnostic rations between the emission line intensities. The sensitivity of the relative line intensities and the diagnostic rations to the chemical abundances variations was analyzed. It was concluded that there is necessity to include the He/H, O/H and S/H to the first stage of OPhMs free parameters.

Keywords: nebular objects' emission; determination of chemical composition

References

  1. Melekh B.Ya. (2009). Dvostadiyne optymizovane modeliuvannia svitinnia zony HII u blakytniy kompaktniy karlykoviy halaktytsi SBS 0335+052. Zhurnal fizychnykh doslidzhen’, 13(3), 3901.
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  4. Havrylova N.V., Holovatyy V.V., Melekh B.Ya. (2002). Ionizatsiyno-korektsiyni faktory dlia vyznachennia khimichnoho vmistu planetarnykh tumannostey z neodnoridnym rozpodilom hustyny nebuliarnoho hazu. Zhurn. fiz. dosl., 6(4), 451.

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