South Galactic Cap u-band Sky Survey (SCUSS): Data Reduction
Abstract
The South Galactic Cap u-band Sky Survey (SCUSS) is a deep u-band imaging survey in the Southern Galactic Cap, using the 90Prime wide-field imager on the 2.3m Bok telescope at Kitt Peak. The survey observations started in 2010 and ended in 2013. The final survey area is about 5000 deg2 with a median 5-sigma point source limiting magnitude of about 23.2. This paper describes the survey data reduction process, which includes basic imaging processing, astrometric and photometric calibrations, image stacking, and photometric measurements. Survey photometry is performed on objects detected both on SCUSS u-band images and in the SDSS database. Automatic, aperture, point-spread function (PSF), and model magnitudes are measured on stacked images. Co-added aperture, PSF, and model magnitudes are derived from measurements on single-epoch images. We also present comparisons of the SCUSS photometric catalog with those of the SDSS and CFHTLS.
Cite
@article{arxiv.1509.02647,
title = {South Galactic Cap u-band Sky Survey (SCUSS): Data Reduction},
author = {Hu Zou and Zhaoji Jiang and Xu Zhou and Zhenyu Wu and Jun Ma and Xiaohui Fan and Zhou Fan and Boliang He and Yipeng Jing and Michael Lesser and Cheng Li and Jundan Nie and Shiyin Shen and Jiali Wang and Tianmeng Zhang and Zhimin Zhou},
journal= {arXiv preprint arXiv:1509.02647},
year = {2015}
}
Comments
24 pages, 20 figures, published online (AJ, 150, 104)