宽场观测的微弱 UBVRI CCD 序列 -- II. UBVR 序列于赤度=-30°
摘要
我们 presenting results from a continuing campaign to secure deep multi-colour CCD sequences for photometric calibration in UK Schmidt fields with galactic latitudes |b|>50deg. In this paper we present UBVR photometry in 12 fields and BR photometry in a further 14 fields observed within UK Schmidt survey fields centred at declination=-30deg. Photometric errors are at the 0.05 level at 20.2, 21, 20.5 and 20 mag for UBVR sequences respectively. Our observations were carried out with the 0.9m Telescope at the Cerro-Tololo Inter-American Observatory. These data are not intended for use as highly accurate individual photometric standards, but rather for use as sequences, using a large number of stars to calibrate wide-area data such as photographic plates. The data are available electronically at http://icstar5.ph.ic.ac.uk/~scroom/phot/photom.html
引用
@article{arxiv.astro-ph/9905251,
title = {Faint UBVRI CCD sequences for wide-field surveys -- II. UBVR sequences at declination=-30 deg},
author = {Scott M. Croom and A. Ratcliffe and Q. A. Parker and T. Shanks and B. J. Boyle and R. J. Smith},
journal= {arXiv preprint arXiv:astro-ph/9905251},
year = {2009}
}
备注
7 pages, 5 figures. Accepted by MNRAS. Photometry data tables available at http://icstar5.ph.ic.ac.uk/~scroom/phot/photom.html