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Volume 384, Number 3, March IV 2002
Page(s) 884 - 889
Section Galactic structure and dynamics
DOI http://dx.doi.org/10.1051/0004-6361:20020111

A&A 384, 884-889 (2002)
DOI: 10.1051/0004-6361:20020111

VLT-UVES spectroscopy of a bulge giant magnified through microlensing: EROS-BLG-2000-5

D. Minniti1, B. Barbuy2, V. Hill3, E. Bica4, S. Ortolani5, R. M. Rich6, K. H. Cook7, T. Vandehei8, A. Renzini9, L. Pasquini9 and D. Bennett10

1  Universidad Catolica de Chile, Department of Astronomy & Astrophysics, Casilla 306, Santiago 22, Chile
    e-mail: dante@astro.puc.cl
2  Universidade de São Paulo, Departamento de Astronomia, CP 3386, São Paulo 01060-970, Brazil
3  Observatoire de Paris-Meudon, 92195 Meudon Cedex, France
    e-mail: Vanessa.Hill@obspm.fr
4  Universidade Federal do Rio Grande do Sul, Departamento de Astronomia, CP 15051, Porto Alegre 91501-970, Brazil
    e-mail: bica@if.ufrgs.br
5  Università di Padova, Dipartimento di Astronomia, Vicolo dell'Osservatorio 2, 35122 Padova, Italy
    e-mail: ortolani@pd.astro.it
6  UCLA, Department of Physics & Astronomy, 8979 Math-Sciences Building, Los Angeles, CA 90095-1562, USA
    e-mail: rmr@astro.ucla.edu
7  Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    e-mail: kcook@llnl.gov
8  University of California, Department of Physics, San Diego, CA 92093, USA
    e-mail: vandehei@astrophys.ucsd.edu
9  European Southern Observatory, Karl Schwarzschild Strasse 2, 85748 Garching bei München, Germany
    e-mail: arenzini@eso.org, lpasquin@eso.org
10  University of Notre Dame, Department of Physics, Notre Dame, IN 46556, USA
    e-mail: bennett@bustard.phys.nd.edu

(Received 28 November 2001 / Accepted 15 January 2002 )


High resolution spectra of a magnified bulge star were obtained at the 8 m Kueyen VLT-UT2 telescope with the UVES spectrograph. The source is a bulge giant of baseline magnitude $V_{\rm EROS} = 18.4$, magnified to $V \approx 18.0$. These data allow us to derive the stellar parameters of effective temperature $T_{\rm eff} \sim 3800$ K, gravity log  $g \sim 1.0$, reddening $E(B-V) \sim 0.7$, metallicity and and [O/Fe] $\approx$ 0.0 for EROS-BLG-2000-5. The giant appears to be located in the far side of the bulge.

Key words: Galaxy: bulge -- abundances -- gravitational lensing

Offprint request: B. Barbuy, barbuy@iagusp.usp.br

SIMBAD Objects

© ESO 2002