Issue |
Astron. Astrophys. Suppl. Ser.
Volume 127, Number 3, February I 1998
|
|
---|---|---|
Page(s) | 471 - 477 | |
DOI | https://doi.org/10.1051/aas:1998114 | |
Published online | 15 February 1998 |
V, I photometry of the bulge metal-rich globular clusters NGC 6380 and Terzan 12*
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:
19
March
1997
Accepted:
9
June
1997
We present V, I photometry of the bulge globular clusters NGC 6380
and Terzan 12,
using the ESO NTT telescope. For the first time
colour-magnitude diagrams are obtained for these clusters, allowing
us to derive reliable cluster parameters. From the colour-magnitude
diagram morphology
both clusters result to be metal-rich.
For NGC 6380
we estimate , a
reddening of
and a distance
. For Terzan 12
we obtain
,
and
.
Key words: globular clusters: NGC 6380, Terzan 12 / HR diagram
© European Southern Observatory (ESO), 1998