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Advances in Astronomy
Volume 2013 (2013), Article ID 596501, 14 pages
http://dx.doi.org/10.1155/2013/596501
Review Article

Properties of the HII Regions Derived Using Integral Field Spectroscopy

1Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía s/n, Apartado 3004, 18080 Granada, Spain
2Centro Astronómico Hispano Alemán, Calar Alto (CSIC-MPG), C/Jesús Durbán Remón 2-2, 04004 Almería, Spain
3Astronomical Institute, Academy of Sciences of the Czech Republic, Boční II 1401/1a, 141 00 Prague, Czech Republic

Received 15 August 2013; Accepted 4 November 2013

Academic Editor: Polychronis Papaderos

Copyright © 2013 Sebastian F. Sánchez. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Here we review some of our more recent results on the observed properties of HII regions using Integral Field Spectroscopy. In particular, we illustrate the use of this technique to study in detail the ionization conditions across the nebulae for galactic HII regions (focused on the Orion Nebula) and the statistical study of large samples of extragalactic HII regions. We review the reported new scaling relation between the local mass density and the oxygen abundance across the disk galaxies and the recently discovered universal gradient for oxygen abundances. We update our previous results the lack of a dependence of the Mass-Metallicity relation with the starformation rate, including new unpublished data. Finally we discuss on the relation between the ionization conditions in the nebulae and the underlying stellar population. All together our results indicate that disk galaxies present a chemical enrichment dominated by an inside-out growth scenario, with a less evident effect of radial migrations and/or outflows.