The small Magellanic Cloud star cluster NGC 458. A new UBVI photometric study

Alcaino, G; Alvarado, F.; Borissova, J.; Kurtev, R

Abstract

We present a new photometry of the Small Magellanic Cloud star cluster NGC 458 in UBVI filters. We determine the reddening E(B - V) = 0.04 ± 0.02. By comparison with the isochrones by Bertelli et al. (1994) we derive an age of ? 140 Myr. Three candidate blue straggler stars are proposed. The evolved "blue loop" stars of NGC 458 have masses between 4 and 5 M? and are hotter than model predictions.

Más información

Título según WOS: The small Magellanic Cloud star cluster NGC 458. A new UBVI photometric study
Título según SCOPUS: The Small Magellanic Cloud star cluster NGC 458. A new UBVI photometric study
Título de la Revista: ASTRONOMY & ASTROPHYSICS
Volumen: 400
Número: 3
Editorial: EDP SCIENCES S A
Fecha de publicación: 2003
Página de inicio: 917
Página final: 921
Idioma: English
URL: http://www.edpsciences.org/10.1051/0004-6361:20030069
DOI:

10.1051/0004-6361:20030069

Notas: ISI, SCOPUS