The uBVI Photometric System. II. Standard Stars
arXiv:astro-ph/0503087 · doi:10.1086/430054
Abstract
Paper I of this series described the design of a CCD-based photometric system that is optimized for ground-based measurements of the size of the Balmer discontinuity in stellar spectra. This "uBVI" system combines the Thuan-Gunn u filter with the standard Johnson-Kron-Cousins BVI filters, and it can be used to discover luminous yellow supergiants in extragalactic systems and post-asymptotic-giant-branch stars in globular clusters and galactic halos. In the present paper we use uBVI observations obtained on 54 nights with 0.9-m telescopes at Kitt Peak and Cerro Tololo to construct a catalog of standardized u magnitudes for standard stars taken from the 1992 catalog of Landolt. We describe the selection of our 14 Landolt fields, and give details of the photometric reductions, including red-leak and extinction corrections, transformation of all of the observations onto a common magnitude system, and establishment of the photometric zero point. We present a catalog of u magnitudes of 103 stars suitable for use as standards. We show that data obtained with other telescopes can be transformed to our standard system with better than 1% accuracy.
arXiv comment24 pages, 4 figures, 4 tables; accepted by AJ
References in corpus (4)
- Some Revised Observational Constraints on the Formation and Evolution of the Galactic Disk
- Starcounts Redivivus. IV. Density Laws Through Photometric Parallaxes
- CCD Photometry of the Globlular Cluster NGC 5986 and its Post-Asymptotic-Giant-Branch and RR Lyrae Stars
- The uBVI Photometric System. I. Motivation, Implementation, and Calibration
Cited by in corpus (8)
- The Swift UVOT Stars Survey: I. Methods and Test Clusters
- Estimating stellar ages and metallicities from parallaxes and broadband photometry - successes and shortcomings
- Light-Element Abundance Variations at Low Metallicity: the Globular Cluster NGC 5466
- High Resolution Optical Spectroscopy of a Newly Discovered Post-AGB Star with a Surprising Metallicity in the Globular Cluster M79
- The uBVI Photometric System. I. Motivation, Implementation, and Calibration
- A Luminous Yellow Post-AGB Star in the Galactic Globular Cluster M79
- A Census of Above-Horizontal-Branch Stars in Galactic Globular Clusters
- Two Luminous Post-AGB Stars in the Galactic Globular Cluster M19