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| Paper: |
A Hardening of the Ionizing Radiation across Spiral Discs? |
| Volume: |
421, Galaxies in Isolation: Exploring Nature Versus Nurture |
| Page: |
277 |
| Authors: |
Pérez-Montero, E.; lchez, J. M. V. |
| Abstract: |
In this contribution we study the effective temperature of ionizing clusters of HII regions by means of the so-called softness parameters, as defined using some bright emission lines in the optical and the mid-infrared part of the spectrum. We then explore the galactocentric variation of these parameters across the star-forming regions of the discs of spiral galaxies. We find that the existence of a gradient is not universal, but that its presence and strength is unexpectedly correlated with other properties of the host galaxy. |
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