AGE-METALLICITY DEGENERACY AT MID-UV WAVELENGTHS
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2009
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| _version_ | 1876433303572054016 |
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| author | E. Bertone |
| author_facet | E. Bertone |
| contents | AGE-METALLICITY DEGENERACY AT MID-UV WAVELENGTHS E. Bertone M. Chavez A. Buzzoni Física, Astronomía y Matemáticas ultraviolet: galaxies galaxies: stellar content Galaxies: fundamental parameters The so-called age-metallicity degeneracy, which a ects the optical spectral properties of stellar populations, is also present at mid-ultraviolet wavelengths. We give here the results for two reference objects: the Sun (assumed as representative of the turno star of a single stellar population) and M32. Within a theoretical framework, we have explored the properties of the age-metallicity degeneracy by means of 17 spectroscopic indices from 2100 to 3100 A: our preliminary results show a metallicity sensitivity parameter value of 1.7=1.2, which is compatible with the Worthey's value of 3/2 in the optical interval. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115687021 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.37 |
| format | Artículo científico |
| id | redalyc_57115687021 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | AGE-METALLICITY DEGENERACY AT MID-UV WAVELENGTHS E. Bertone Física, Astronomía y Matemáticas ultraviolet: galaxies galaxies: stellar content Galaxies: fundamental parameters AGE-METALLICITY DEGENERACY AT MID-UV WAVELENGTHS E. Bertone M. Chavez A. Buzzoni Física, Astronomía y Matemáticas ultraviolet: galaxies galaxies: stellar content Galaxies: fundamental parameters The so-called age-metallicity degeneracy, which a ects the optical spectral properties of stellar populations, is also present at mid-ultraviolet wavelengths. We give here the results for two reference objects: the Sun (assumed as representative of the turno star of a single stellar population) and M32. Within a theoretical framework, we have explored the properties of the age-metallicity degeneracy by means of 17 spectroscopic indices from 2100 to 3100 A: our preliminary results show a metallicity sensitivity parameter value of 1.7=1.2, which is compatible with the Worthey's value of 3/2 in the optical interval. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115687021 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.37 |
| title | AGE-METALLICITY DEGENERACY AT MID-UV WAVELENGTHS |
| topic | Física, Astronomía y Matemáticas ultraviolet: galaxies galaxies: stellar content Galaxies: fundamental parameters |
| url | https://www.redalyc.org/articulo.oa?id=57115687021 |