Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud

The colour-magnitude diagram (CMD) of the intermediate-age Large Magellanic Cloud star cluster NGC 2154 and its adjacent field has been analysed using Padova stellar models to determine the cluster's fundamental parameters and its star formation history. Deep BR CCD photometry, together with sy...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Baume, Gustavo, Carraro, G., Costa, E., Méndez, R. A., Girardi, L.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
Galaxies: star clusters
Galaxies: stellar content
Magellanic clouds
Stars: evolution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83076
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83076
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies: star clusters
Galaxies: stellar content
Magellanic clouds
Stars: evolution
spellingShingle Ciencias Astronómicas
Galaxies: star clusters
Galaxies: stellar content
Magellanic clouds
Stars: evolution
Baume, Gustavo
Carraro, G.
Costa, E.
Méndez, R. A.
Girardi, L.
Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
topic_facet Ciencias Astronómicas
Galaxies: star clusters
Galaxies: stellar content
Magellanic clouds
Stars: evolution
description The colour-magnitude diagram (CMD) of the intermediate-age Large Magellanic Cloud star cluster NGC 2154 and its adjacent field has been analysed using Padova stellar models to determine the cluster's fundamental parameters and its star formation history. Deep BR CCD photometry, together with synthetic CMDs and integrated luminosity functions, has allowed us to infer that the cluster experienced an extended star formation period of about 1.2 Gyr, which began approximately 2.3 Gyr ago and ended 1.1 Gyr ago. However, the physical reality of such a prolonged period of star formation is questionable, and could be the result of inadequacies in the stellar evolutionary tracks themselves. A substantial fraction of binaries (70 per cent) seems to exist in NGC 2154.
format Articulo
Articulo
author Baume, Gustavo
Carraro, G.
Costa, E.
Méndez, R. A.
Girardi, L.
author_facet Baume, Gustavo
Carraro, G.
Costa, E.
Méndez, R. A.
Girardi, L.
author_sort Baume, Gustavo
title Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
title_short Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
title_full Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
title_fullStr Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
title_full_unstemmed Extended star formation history of the star cluster NGC 2154 in the large magellanic cloud
title_sort extended star formation history of the star cluster ngc 2154 in the large magellanic cloud
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/83076
work_keys_str_mv AT baumegustavo extendedstarformationhistoryofthestarclusterngc2154inthelargemagellaniccloud
AT carrarog extendedstarformationhistoryofthestarclusterngc2154inthelargemagellaniccloud
AT costae extendedstarformationhistoryofthestarclusterngc2154inthelargemagellaniccloud
AT mendezra extendedstarformationhistoryofthestarclusterngc2154inthelargemagellaniccloud
AT girardil extendedstarformationhistoryofthestarclusterngc2154inthelargemagellaniccloud
bdutipo_str Repositorios
_version_ 1764820488259895300

Ejemplares similares