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arXiv · 1208.5364

The oxygen abundance in the IFU era

F. F. Rosales-Ortega·S. F. Sánchez·A. I. Díaz
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Abstract

Spatially-resolved information of gas-phase emission provided by integral field units (IFUs) are allowing us to perform a new generation of emission-line surveys, based on large samples of HII regions and full two-dimensional coverage. Here we present two highlights of our current studies employing this technique: 1) A statistical approach to the abundance gradients of spiral galaxies, which indicates an -universal- radial gradient for oxygen abundance; and 2) The discovery of a new scaling relation of HII regions in spiral galaxies, the "local" mass-metallicity relation of star-forming galaxies.

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F. F. Rosales-Ortega, S. F. Sánchez, A. I. Díaz. 2012-08-27. The oxygen abundance in the IFU era. https://arxiv.org/abs/1208.5364

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