How to determine the star formation histories in spiral disks
| dc.creator | Molla, M. | |
| dc.creator | Hardy, E. | |
| dc.date | 2003-02-05 | |
| dc.date.accessioned | 2026-07-07T02:07:29Z | |
| dc.date.available | 2026-07-07T02:07:29Z | |
| dc.description | We have computed 500 chemical evolution models for the galaxy NGC 4303. With the obtained evolutionary histories and a synthesis model we have also calculated the spectral indices Mg2 and Fe5270. Fom the 500 models, by using a chi-square technique, we obtain those reproducing the present day observations within a confidence level of 95 %, reducing the number of possible models to 19. Only 6 of them are also able to reproduce the spectral indices radial distributions with the same level of confidence. We conclude that this technique of combining chemical with evolutionary synthesis models is a very powerful tool, and, therefore, we propose to perform more observational campaigns to obtain these and other spectral indices in spiral and irregular galaxies. | |
| dc.description | Proceedings of the V Scientific Meeting of the Spanish Astronomical Society (Toledo, Spain, 2002) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0302086 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0302086 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5712 | |
| dc.subject | Astrophysics | |
| dc.title | How to determine the star formation histories in spiral disks | |
| dc.type | text |