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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 ,
V. Luridiana  and
M. Cerviño
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.

Keywords

stars: mass functiongalaxies: star clusters(ISM): HII regions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 527 - 528
Copyright
Copyright © International Astronomical Union 2007

References

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