UBV photometry for 31 globular galactic clusters.
Abstract
The UBV photometry of 31 globular clusters south of declination +12 deg has been obtained using the Mt. Stromlo Observatory 61-cm reflecting telescope. An aperture with a diameter of 29 arcsec in the focal plane was used for standard star and globular cluster observations. In general, 10 second integrations were performed for the sky and the clusters to yield formal photon-statistical accuracies of 1 percent (0.01 mag) or better. The data presented represent modern UBV photoelectric measurements for about a quarter of the known galactic globular clusters. In combination with other bandpasses, the observations should permit a renewed assessment of the reliability of such broadband photometric indices as metallicity indicators in the clusters of this and other galaxies.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- 1984
- DOI:
- 10.1017/S1323358000017197
- Bibcode:
- 1984PASA....5..360H
- Keywords:
-
- Absorption Spectra;
- Astronomical Spectroscopy;
- Quasars;
- Radio Sources (Astronomy);
- Data Reduction;
- Focal Plane Devices;
- Line Spectra;
- Radio Astronomy;
- Red Shift;
- Spectral Resolution;
- Ultraviolet Absorption;
- Astronomy