Issue |
A&A
Volume 400, Number 3, March IV 2003
|
|
---|---|---|
Page(s) | 917 - 921 | |
Section | Galactic structure, stellar clusters, and populations | |
DOI | https://doi.org/10.1051/0004-6361:20030069 | |
Published online | 07 March 2003 |
The Small Magellanic Cloud star cluster NGC 458. A new UBVI photometric study*
1
Isaac Newton Institute of Chile, Ministerio de Educacion de Chile, Casilla 8-9, Correo 9, Santiago, Chile e-mail: inewton@terra.cl
2
Institute of Astronomy, Bulgarian Academy of Sciences and Isaac Newton Institute of Chile Bulgarian Branch, 72 Tsarigradsko chaussèe, 1784 Sofia, Bulgaria e-mail: jborisso@astro.puc.cl
3
Department of Astronomy, Sofia University and Isaac Newton Institute of Chile Bulgarian Branch, 1164 Sofia, Bulgaria e-mail: kurtev@phys.uni-sofia.bg
Corresponding authors: R. G. Kurtev, kurtev@phys.uni-sofia.bg jborisso@astro.puc.cl
Received:
16
August
2002
Accepted:
7
January
2003
We present a new photometry of the Small Magellanic Cloud star
cluster NGC 458 in UBVI filters. We determine the
reddening . 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
and are hotter
than model predictions.
Key words: stars: Hertzsprung-Russell (HR) and C-M diagrams / galaxies: stellar content / galaxies: Magellanic clouds / galaxies: individual: SMC / galaxies: stars clusters
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.