Issue |
Astron. Astrophys. Suppl. Ser.
Volume 131, Number 3, September 1998
|
|
---|---|---|
Page(s) | 483 - 497 | |
DOI | https://doi.org/10.1051/aas:1998284 | |
Published online | 15 September 1998 |
Integrated spectral study of reddened globular clusters and candidates*
1
Universidade Federal do Rio Grande do Sul, IF, CP 15051, Porto Alegre 91501–970, RS, Brazil
2
Observatorio Astronómico, Laprida 854, 5000 Córdoba, Argentina
Send offprint request to: E. Bica
Received:
29
January
1998
Accepted:
23
March
1998
This paper presents integrated spectra in the range 6700 - 9500 for 20 Galactic
globular clusters (and candidates) in the bulge and 5 others projected on the Galactic
disk ( and
). Most of them are considerably
reddened and are among those least studied in the literature. We derive reddening and
metallicity from flux-calibrated spectra, thus providing independent information of
that derived through colour-magnitude studies. For some clusters in the sample, these
parameters have been determined for the first time, and for others a considerable revision
is given. We indicate the globular clusters which definitely belong to the bulge metal-rich
and intermediate metallicity families. Among the objects projected on the disk, we find that
the integrated spectral properties of Lyngå 7, BH 176 and Palomar 10 are compatible with
those of metal-rich globular clusters. Finally, ESO 93–SC08 is an old open cluster, and UKS 2
is an open cluster with age
Gyr.
Key words: (Galaxy:) globular clusters: general / Galaxy: evolution
© European Southern Observatory (ESO), 1998