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A New Model of NGC 6210 to Solve its Abundance Discrepancy Problem

Published online by Cambridge University Press:  08 August 2017

V. Escalante  and
J. A. Toalá
V. Escalante
Affiliation:
Instituto de Radioastronomía y Astrofísica UNAM, Morelia 58341, Michoacán, México email: [email protected]
J. A. Toalá
Affiliation:
Institute of Astronomy and Astrophysics Academia Sinica (ASIAA), Taipei 10617, Taiwan email: [email protected]
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Abstract

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We present a model that solves the abundance discrepancy problem for NGC 6210. The model proposes a high abundance of CNONe elements that lowers the temperature of the central parts of the nebula. The colder gas model reproduces the observed intensity of the strong [N ii] and [O iii] emission lines, and increases the predicted weak recombination lines towards their observed values. We examine how the usual nebular diagnostic line ratios depend on model abundances.

Keywords

ISM: abundancesplanetary nebula: NGC 6210
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution , October 2016 , pp. 337 - 338
Copyright
Copyright © International Astronomical Union 2017 

References

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