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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2003
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=57101805 |
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Table of Contents:
- Statistical Synthesis Models V. Luridiana M. Cerviño Física, Astronomía y Matemáticas Galaxies: Star Clusters Galaxies: Stellar Content open Clusters and Associations: General In this contribution we evaluate the minimal cluster mass for which the efects of an incomplete sampling of the Initial Mass Function (IMF) cannot be neglected. This minimal cluster mass corresponds to the situation in which the integrated luminosity of the cluster modeled equals the luminosity of the most luminous individual star included in the model, and it takes values between 3x102 and 6x105 M๏ depending on the age and the observed band. We show diferent examples for young (t < 10 Myr) and old (t up to 10 Gyr) stellar populations. We also make here a first release of the spectral energy distribution (SED) from 160 μm (1:8 _ 1012 Hz) to 25 keV (6.0 x 1018 Hz) for star-forming regions with ages between 0.1 and 10 Myr, and metallicities between Z=0.001 and Z=0.040. The SEDs are available at our WWW server and include the corresponding quantities for the evaluation of sampling effects. These SEDs can be directly used to obtain colors (including the X-rays ones), as input of photoionization codes, or for x2 fitting with observed data taking into account the intrinsic uncertainty of the models due to the IMF sampling. 2003 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101805 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.18