| Issue |
A&A
Volume 381, Number 2, JanuaryII 2002
|
|
|---|---|---|
| Page(s) | 472 - 480 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20011565 | |
| Published online | 15 January 2002 | |
Metallicity and radial velocity of the second parameter globular cluster Terzan 1 in the galactic bulge*
1
Universidade de São Paulo, CP 3386, São Paulo 04301-904, Brazil e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
2
Observatoire de Paris, 61 Av. de l'Observatoire, 75014 Paris, France e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
3
Università di Padova, Dept. di Astronomia, Vicolo dell'Osservatorio 5, 35122 Padova, Italy e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
4
Universidade Federal do Rio Grande do Sul, Dept. de Astronomia, CP 15051, Porto Alegre 91501-970, Brazil e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
5
European Southern Observatory, Karl Schwarzschild Strasse 2, 85748, Garching bei München, Germany e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Corresponding author: T. P. Idiart, This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
21
August
2001
Accepted:
19
October
2001
Abstract
Terzan 1 is the globular cluster with closest projection
relative to the Galactic center.
We report radial velocities and metallicities
of 17 stars in order to investigate their membership in the cluster.
From the 11 probable members of Terzan 1, a radial velocity of
km s-1 is obtained. For this sample
an intermediate metallicity of ![Mathematical equation: ${\rm [Fe/H]}\approx -1.3$](/articles/aa/abs/2002/02/aa1833/aa1833_tex_eq2.png)
is found, in agreement
with previous work based on HST Colour-Magnitude Diagrams.
Key words: globular clusters: individual: Terzan 1 / techniques: spectroscopic
Observations collected at the European Southern Observatory, ESO, Chile, Laboratório Nacional de Astrofísica, LNA, Brazil and with the Hubble Space Telescope.
© ESO, 2002
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