Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..145..451r&link_type=abstract
Astronomy and Astrophysics Supplement, v.145, p.451-465
Astronomy and Astrophysics
Astrophysics
57
Astronomical Data Base: Miscellaneous, Catalogs, Stars: Hertzsprung-Russell (Hr) And C-M Diagrams, Stars: Population Ii, Globular Clusters: General
Scientific paper
In this paper we present the second and final part of a large and photometrically homogeneous CCD color-magnitude diagram (CMD) data base, comprising 52 nearby Galactic globular clusters (GGC) imaged in the V and I bands. The catalog has been collected using only two telescopes (one for each hemisphere). The observed clusters represent 75% of the known Galactic globulars with (m-M)_V<= 16.15 mag, cover most of the globular cluster metallicity range (-2.2 <= [Fe/H]<= -0.4), and span Galactocentric distances from ~ 1.2 to ~ 18.5 kpc. In particular, here we present the CMDs for the 13 GGCs observed in the Northern hemisphere. The remaining 39 Southern hemisphere clusters of the catalog have been presented in a companion paper (Rosenberg et al. \cite{rosenberg00}). We present the first CCD color magnitude diagram for NGC 6779 (M 56). All the CMDs extend from at least ~ 2 magnitudes below the turn-off (i.e. V_lim>=22) to the tip of the red giant branch. The calibration has been done using a large number of standard stars, and the absolute calibration is reliable to a ~ 0.02 mag level in both filters. This catalog, because of its homogeneity, is expected to represent a useful data base for the measurement of the main absolute and relative parameters characterizing the CMD of GGCs. Based on observations made with the 1~m Jacobus Kapteyn Telescope operated on the island of La Palma by the ING in the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofìsica de Canarias.
Aparicio Antonio
Piotto Giampaolo
Rosenberg Alexander
Saviane Ivo
No associations
LandOfFree
Photometric catalog of nearby globular clusters. II. A large homogeneous (V,I) color-magnitude diagram data-base does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photometric catalog of nearby globular clusters. II. A large homogeneous (V,I) color-magnitude diagram data-base, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric catalog of nearby globular clusters. II. A large homogeneous (V,I) color-magnitude diagram data-base will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1522144