PNE AS OBSERVATIONAL CONSTRAINTS IN CHEMICAL EVOLUTION MODELS FOR NGC 6822
Fuente:
Redalyc
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional Autónoma de México
2011
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1876438456722259968 |
|---|---|
| author | L. Hernández-Martínez |
| author_facet | L. Hernández-Martínez |
| contents | PNE AS OBSERVATIONAL CONSTRAINTS IN CHEMICAL EVOLUTION MODELS FOR NGC 6822 L. Hernández-Martínez L. Carigi M. Peña M. Peimbert Física, Astronomía y Matemáticas general Galaxies galaxies evolution HII regions We present chemical evolution models for the dwarf irregular galaxy NGC6822, using as observational constraints chemical abundances of planetary nebulae (PNe) and HII regions derived from both, collisionally excited lines (CELs) and recombination lines (RLs) methods. We built two models that reproduce gaseous mass and the O/H derived for those two methods in order to discriminate between abundances obtained by CELs and by RLs. Both models produce a fair agreement with observations, but the predicted AY/AZ value for the RLs model is in better agreement with those values observed in Irr galaxies. 2011 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57121297086 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 |
| format | Artículo científico |
| id | redalyc_57121297086 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | PNE AS OBSERVATIONAL CONSTRAINTS IN CHEMICAL EVOLUTION MODELS FOR NGC 6822 L. Hernández-Martínez Física, Astronomía y Matemáticas general Galaxies galaxies evolution HII regions PNE AS OBSERVATIONAL CONSTRAINTS IN CHEMICAL EVOLUTION MODELS FOR NGC 6822 L. Hernández-Martínez L. Carigi M. Peña M. Peimbert Física, Astronomía y Matemáticas general Galaxies galaxies evolution HII regions We present chemical evolution models for the dwarf irregular galaxy NGC6822, using as observational constraints chemical abundances of planetary nebulae (PNe) and HII regions derived from both, collisionally excited lines (CELs) and recombination lines (RLs) methods. We built two models that reproduce gaseous mass and the O/H derived for those two methods in order to discriminate between abundances obtained by CELs and by RLs. Both models produce a fair agreement with observations, but the predicted AY/AZ value for the RLs model is in better agreement with those values observed in Irr galaxies. 2011 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57121297086 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 |
| title | PNE AS OBSERVATIONAL CONSTRAINTS IN CHEMICAL EVOLUTION MODELS FOR NGC 6822 |
| topic | Física, Astronomía y Matemáticas general Galaxies galaxies evolution HII regions |
| url | https://www.redalyc.org/articulo.oa?id=57121297086 |