Artículo
Young star clusters inmersed in intermediate-age fields in the Large Magellanic Cloud bar
Fecha de publicación:
08/2003
Editorial:
Oxford University Press
Revista:
Monthly Notices of the Royal Astronomical Society
ISSN:
0035-8711
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present Washington system photometry for 11 star cllusters inmersed in the north-west part of the Large Magellanic Cloud (LMC) bar, centred on the intermediate-age clusters NGC 1865 and SL 244. The fields are heavely populated by the intermediate-age component of the LMC bar. We succedded in disentangling cluster colour-magnitude diagrams from those of the fields and in deriving reddening and ages for five clusters - SL 218, BRHT4b, and NGC 1839, 1838 and 1863 - with the aid of recent Washington system theoretical isochrones. The resulting cluster ages range between 50 and 125 Myr. Despite their proximity, NGC 1836 and BRHT4b have very different ages. Thus the possibility of these two objects being a binary cluster is very unlikely, although a capture cannot be ruled out a priori. Our results suggest that for each intermediate-age cluster remaining in the LMC bar region, a number of robust young blue star clusters occur in the same region.
Palabras clave:
Star Cluster
,
Large Magellanic Cloud
,
Photometry
,
Metallicity
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Piatti, Andres Eduardo; Geisler, Doug; Bica, Eduardo; Claria Olmedo, Juan Jose; Young star clusters inmersed in intermediate-age fields in the Large Magellanic Cloud bar; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 343; 3; 8-2003; 851-862
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