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Sampling effects in the emission line spectra of HII regions

Published online by Cambridge University Press:  01 December 2006

M. Villaverde
Affiliation:
Instituto de Astrofsica de Andaluca (CSIC), Apdo. 3004, Granada 18080, Spain
V. Luridiana
Affiliation:
Instituto de Astrofsica de Andaluca (CSIC), Apdo. 3004, Granada 18080, Spain
M. Cerviño
Affiliation:
Instituto de Astrofsica de Andaluca (CSIC), Apdo. 3004, Granada 18080, Spain
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Abstract

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The combination of stellar population synthesis models and photoionization models allows a better understanding of the spectral features of HII regions and HII galaxies. In this work we show that sampling effects in the initial mass function (IMF) are very important in the low cluster mass case. To this aim, we compute photoionization models ionized by realistic clusters made up of various combinations of individual stars and clusters made up with a synthesis model. We discuss the differences in the position on diagnostic diagrams and their implications.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

References

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