NGC 2571: An intermediate-age open cluster with a White Dwarf candidate
CCD <i>UBVI</i> imaging photometry was carried out in the field of the open cluster NGC 2571. From the analysis of our data we state the cluster is at a distance of 1380 ± 130 pc and its age is 504±10 ×10<SUP>6</SUP> yr. The cluster mass function has a slope larger than a typ...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/84919 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84919 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias Astronómicas H-R diagrams Open clusters and associations: individual: NGC 2571 Stars: blue stragglers Stars: chemically peculiar Stars: luminosity function, mass function |
| Sumario: | CCD <i>UBVI</i> imaging photometry was carried out in the field of the open cluster NGC 2571. From the analysis of our data we state the cluster is at a distance of 1380 ± 130 pc and its age is 504±10 ×10<SUP>6</SUP> yr. The cluster mass function has a slope larger than a typical Salpeter's law. There are two notorious features in NGC 2571: the cluster contains a high proportion of stars located below the reference line that are serious candidates to be metallic line stars (probably Am-Fm), and shows also a sharp gap along its main sequence that cannot be explained by a random process nor by a biased rejection of cluster members. A striking blue object was detected in the cluster field that could be a white dwarf candidate. |
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