The Stellar Content of NGC 5850
| Autor: | S. Lourenso, John E. Beckman, A. Vazdekis, Reynier Peletier, J. A. L. Aguerri |
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| Rok vydání: | 2003 |
| Předmět: |
Physics
Stellar population Metallicity Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galaxy Spectral line Primary (astronomy) Content (measure theory) High spatial resolution Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics Bar (unit) |
| Zdroj: | Highlights of Spanish Astrophysics III ISBN: 9789048163236 |
| DOI: | 10.1007/978-94-017-1778-6_131 |
| Popis: | High spatial resolution optical observations of the bar of NGC 5850, together with visible spectra along the primary bar, are being used, with the aid of simple stellar population (SSP) synthesis models, to investigate the mean age and metallicity of the different stellar components of the central part of the galaxy. It is clear that models using SSPs cannot give a good fit to the observed spectral indices, so we have not been able to infer, as yet, the mean stellar age and metallicity of the real populations in this region. These preliminary results show a relatively old primary bar with metallicity about solar, although absolute values must be taken with care. The nuclear region has a young stellar component, and is very dusty. |
| Databáze: | OpenAIRE |
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