Bibcode
Cerviño, M.; Luridiana, V.; Castander, F. J.
Bibliographical reference
Astronomy and Astrophysics, Vol. 360, p.L5-L8
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8
2000
Journal
Citations
62
Refereed citations
48
Description
The stochastic nature of the IMF in young stellar clusters implies that
clusters of the same mass and age do not present the same unique values
of their observed parameters. Instead they follow a distribution. We
address the study of such distributions, parameterised in terms of their
confidence limits, in evolutionary synthesis models. These confidence
limits can be understood as the inherent uncertainties of the synthesis
models. Here we concentrate on some parameters such as EW(Hβ) in
emission. For instance, we show that for a cluster where 105
M&sun; have been transformed into stars, the dispersion of
EW(Hβ) is about 18% within the 90% confidence levels at ages
between 3.5 and 5 Myrs.