QUANTITATIVE STELLAR SPECTRAL CLASSIFICATION. IV. APPLICATION TO THE OPEN CLUSTER IC 2391
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2009
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| _version_ | 1876445915967913984 |
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| author | J. García |
| author_facet | J. García |
| contents | QUANTITATIVE STELLAR SPECTRAL CLASSIFICATION. IV. APPLICATION TO THE OPEN CLUSTER IC 2391 J. García N. Sánchez R. Velásquez Física, Astronomía y Matemáticas Data analysis classication stars: fundamental parameters open clusters and associations: individual (IC 2391) In this work we perform the rst test of a stellar spectral classication method (Stock & Stock 1999) by applying it to early type stars. The sample of stars are the members of the open cluster IC 2391 that have high-resolution spectra available in the UVES Project of Paranal Observatory. We show that, in general, absolute magnitudes MV and intrinsic colors (B - V )0 can be recovered within the uncertainties stated in the original calibration (~ 0:4 for the magnitudes and ~ 0:03 for the colors). This accuracy allows us to estimate distances and to infer membership of individual stars to obtain an average distance to the cluster of 156+- 24 pc, which is in good agreement with previously reported determinations. Finally, we identify and discuss the real strengths and limitations of this method and we suggest how it can be improved for future studies. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57112288002 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) Num.1 Vol.45 |
| format | Artículo científico |
| id | redalyc_57112288002 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | QUANTITATIVE STELLAR SPECTRAL CLASSIFICATION. IV. APPLICATION TO THE OPEN CLUSTER IC 2391 J. García Física, Astronomía y Matemáticas Data analysis classication stars: fundamental parameters open clusters and associations: individual (IC 2391) QUANTITATIVE STELLAR SPECTRAL CLASSIFICATION. IV. APPLICATION TO THE OPEN CLUSTER IC 2391 J. García N. Sánchez R. Velásquez Física, Astronomía y Matemáticas Data analysis classication stars: fundamental parameters open clusters and associations: individual (IC 2391) In this work we perform the rst test of a stellar spectral classication method (Stock & Stock 1999) by applying it to early type stars. The sample of stars are the members of the open cluster IC 2391 that have high-resolution spectra available in the UVES Project of Paranal Observatory. We show that, in general, absolute magnitudes MV and intrinsic colors (B - V )0 can be recovered within the uncertainties stated in the original calibration (~ 0:4 for the magnitudes and ~ 0:03 for the colors). This accuracy allows us to estimate distances and to infer membership of individual stars to obtain an average distance to the cluster of 156+- 24 pc, which is in good agreement with previously reported determinations. Finally, we identify and discuss the real strengths and limitations of this method and we suggest how it can be improved for future studies. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57112288002 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) Num.1 Vol.45 |
| title | QUANTITATIVE STELLAR SPECTRAL CLASSIFICATION. IV. APPLICATION TO THE OPEN CLUSTER IC 2391 |
| topic | Física, Astronomía y Matemáticas Data analysis classication stars: fundamental parameters open clusters and associations: individual (IC 2391) |
| url | https://www.redalyc.org/articulo.oa?id=57112288002 |