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The abundance discrepancy problem in HII regions

J. Garcia-Rojas, C. Esteban

astro-pharXiv:astro-ph/0610903

Abstract

The origin of the abundance discrepancy in nebulae is one of the key problems in the physics of photoionized nebulae. In this work we have analized a sample of Galactic and extragalactic H II regions where the abundance discrepancy have been measured, and we discuss the two main scenarios proposed to explain such discrepancy: temperature fluctuations over the observed volume of the nebulae and chemically inhomogeneous inclusions.

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