| Title | An Investigation of the Absolute Proper Motions of the SCUSS Catalog |
| Authors | Peng, Xiyan Qi, Zhaoxiang Wu, Zhenyu Ma, Jun Du, Cuihua Zhou, Xu Yu, Yong Tang, Zhenghong Jiang, Zhaoji Zou, Hu Fan, Zhou Fan, Xiaohui Smith, Martin C. Jiang, Linhua Jing, Yipeng Lattanzi, Mario G. McLean, Brian J. Lesser, Michael Nie, Jundan Shen, Shiyin Wang, Jiali Zhang, Tianmeng Zhou, Zhimin Wang, Songhu |
| Affiliation | Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China. Univ Chinese Acad Sci, Beijing 100039, Peoples R China. Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China. Univ Arizona, Dept Astron, Tucson, AZ 85721 USA. Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China. Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China. INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, TO, Italy. Space Telescope Sci Inst, Baltimore, MD 21218 USA. Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China. Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China. |
| Keywords | DIGITAL SKY SURVEY DATA RELEASE USNO-B SDSS |
| Issue Date | 2015 |
| Publisher | publications of the astronomical society of the pacific |
| Citation | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC.2015,127,(949),250-257. |
| Abstract | Absolute proper motions for approximate to 7.7 million objects were derived based on data from the South Galactic Cap u-band Sky Survey (SCUSS) and astrometric data derived from uncompressed Digitized Sky Surveys that the Space Telescope Science Institute (STScI) created from the Palomar and UK Schmidt survey plates. We put a great deal of effort into correcting the position-, magnitude-, and color-dependent systematic errors in the derived absolute proper motions. The spectroscopically confirmed quasars were used to test the internal systematic and random error of the proper motions. The systematic errors of the overall proper motions in the SCUSS catalog are estimated as -0.08 and -0.06mas/yr for cos and , respectively. The random errors of the proper motions in the SCUSS catalog are estimated independently as 4.2 and 4.4mas/yr for cos and . There are no obvious position-, magnitude-, and color-dependent systematic errors of the SCUSS proper motions. The random error of the proper motions goes up with the magnitude from about 3mas/yr at u=18.0mag to about 7mas/yr at u=22.0mag. The proper motions of stars in SCUSS catalog are compared with those in the SDSS catalog, and they are highly consistent. |
| URI | http://hdl.handle.net/20.500.11897/384885 |
| ISSN | 0004-6280 |
| DOI | 10.1086/680447 |
| Indexed | SCI(E) |
| Appears in Collections: | 科维理天文与天体物理研究所 |
