Systematic differences in position and proper-motion between the PPMX and UCAC3 catalogs
Systematic differences in position and proper-motion between the PPMX and UCAC3 catalogs
复制标题
PPMX 和 UCAC3 目录之间在位置和自行方面的系统差异
DOI：
10.1088/1674-4527/11/9/006
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发表时间：
2011-09
影响因子：
1.8
通讯作者：
Hu, Bo
中科院分区：
文献类型：
--
作者：
Liu, Jia-Cheng;Zhu, Zi;Hu, Bo
Considered to be extensions of the Hipparcos reference system, PPMX and UCAC3 are two of the most important astrometric catalogs released in current years. Extensive analyses of these two large catalogs have been made in order to determine the local and overall systematic biases. The regional and magnitude dependent differences in stellar position and proper motion are comparable to random errors and are even larger in the northern hemisphere. The global orientation bias vector c between the two systems is also significant (up to 17 mas), which shows the overall differences of the PPMX and UCAC3 catalogs and their reference systems. On the other hand, the term for the global rotation vector omega is small (tenths of mas per year): it is reasonable to believe that the PPMX and UCAC3 reference frames do not rotate with respect to each other. Because of plate dependent and field-to-field errors in the UCAC3 catalog, we suggest that positions and proper motions of UCAC3 stars in the northern hemisphere (delta > -20 degrees) should be used with caution.
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影响因子：
5.3
作者：
Lasker, Barry M.;Lattanzi, Mario G.;Zacchei, Andrea
通讯作者：
Zacchei, Andrea
DOI：
10.1134/s1063773708040051
发表时间：
2008-04
期刊：
Astronomy Letters
影响因子：
--
作者：
A. Piskunov;N. Kharchenko;N. Chupina
通讯作者：
A. Piskunov;N. Kharchenko;N. Chupina
DOI：
10.1086/498708
发表时间：
2006-02
期刊：
The Astronomical Journal
影响因子：
--
作者：
M. Skrutskie;R. Cutri;R. Stiening;M. Weinberg;Simona Schneider;J. Carpenter;C. Beichman;R. Capps
通讯作者：
M. Skrutskie;R. Cutri;R. Stiening;M. Weinberg;Simona Schneider;J. Carpenter;C. Beichman;R. Capps
DOI：
10.1088/0004-6256/139/6/2440
发表时间：
2010-03
期刊：
The Astronomical Journal
影响因子：
--
作者：
Siegfried Roeser;Markus Demleitner;E. Schilbach
通讯作者：
Siegfried Roeser;Markus Demleitner;E. Schilbach
DOI：
10.1088/0004-6256/139/6/2184
发表时间：
2004-05
期刊：
The Astronomical Journal
影响因子：
--
作者：
N. Zacharias;C. Finch;T. Girard;Nigel Hambly;G. L. Wycoff;M. Zacharias;D. Castillo;T. Corbin
通讯作者：
N. Zacharias;C. Finch;T. Girard;Nigel Hambly;G. L. Wycoff;M. Zacharias;D. Castillo;T. Corbin