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Astron. Astrophys. 326, 614-619 (1997)

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V, I photometry of the metal-rich bulge globular cluster Terzan 2 *

S. Ortolani 1, E. Bica 2 and B. Barbuy 3

1 Università di Padova, Dept. di Astronomia, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy
2 Universidade Federal do Rio Grande do Sul, Dept. de Astronomia, CP 15051, Porto Alegre 91500-970, Brazil
3 Universidade de São Paulo, CP 9638, São Paulo 01065-970, Brazil

Received 25 September 1996 / Accepted 18 November 1996

Abstract

We present for the first time optical colour magnitude diagrams of the globular cluster Terzan 2, in the V, I colours. The horizontal branch is red. The red giant branch morphology can be fitted with that of 47 Tuc, but definitely not that of NGC 6553.

We derive a reddening of E(B-V) = 1.54 and a distance d [FORMULA] = 7.7 kpc if R = 3.1, or 5.3 kpc if R = 3.6. Terzan 2 adds to the list of bulge metal-rich clusters now with reliable parameters.

Key words: globular clusters: Terzan 2HR diagramGalaxy: abundancesGalaxy: center

* Observations collected at the European Southern Observatory - ESO, Chile; Table 2 is available only in electronic form at the CDS via anonymous ftp 130.79.128.5

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© European Southern Observatory (ESO) 1997

Online publication: October 15, 1997
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