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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2011
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=57121297031 |
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Table of Contents:
- GTC LONG-SLIT SPECTROSCOPY OF COMPACT STELLAR CLUSTERS IN M81 Y. D. Mayya D. Rosa-González M. Santiago-Cortés Física, Astronomía y Matemáticas Galaxies galaxies star clusters individual (M81) We here present the ages of four compact stellar clusters (CSCs) in the nearby spiral galaxy M81, using long-slit optical spectra obtained with the 10.4 m Gran Telescopio Canarias (GTC). All the four CSCs, including the brightest in this galaxy, are found to have ages between 5¨C6 Myr, with one of them showing Wolf-Rayet spectral features. The photometric masses of these clusters, calculated using their spectroscopically derived ages, lie between 3000 C18000 M. The observed clusters are among the brightest objects, and hence the most massive, in the entire disk of M81. This implies the absence of massive (105 M) compact stellar clusters in M81. 2011 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57121297031 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.40