EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 400/3 Article
Free access article

Issue A&A
Volume 400, Number 3, March IV 2003
Page(s) 917 - 921
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20030069



A&A 400, 917-921 (2003)
DOI: 10.1051/0004-6361:20030069

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

G. Alcaino1, F. Alvarado1, J. Borissova2 and R. Kurtev3

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

(Received 16 August 2002 / Accepted 7 January 2003 )

Abstract
We present a new photometry of the Small Magellanic Cloud star cluster NGC 458 in UBVI filters. We determine the reddening $E(B-V)=0.04\pm0.02$. By comparison with the isochrones by Bertelli et al. (1994) we derive an age of $\approx$140 Myr. Three candidate blue straggler stars are proposed. The evolved "blue loop" stars of NGC 458 have masses between 4 and 5 $\cal M_\odot$ 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

Offprint request: R. G. Kurtev, kurtev@phys.uni-sofia.bg

SIMBAD Objects



© ESO 2003


What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.