24 citations · 69 across the 7 of their papers we have counts for
7 papers
Precision premium transformation -- a high-precision astrometric solution based on the precision premium curve
Z. J. Zheng, Q. Y. Peng, F. R. Lin +2
Context. In Gaia era, atmospheric turbulence, which causes stochastic wander of a star image, is a fundamental limitation to the astrometric accuracy of ground-based optical imagin…
A geometric distortion solution specifically for historical observations and its implementation
F. R. Lin, Q. Y. Peng, Z. J. Zheng +1
Geometric distortion (GD) critically constrains the precision of astrometry. Using well-established methods to correct GD requires calibration observations, which can only be obtai…
An Astrometric Approach to Measuring the Color of an Object
B. F. Guo, Q. Y. Peng, X. Q. Fang +1
The color of a star is a critical feature to reflect its physical property such as the temperature. The color index is usually obtained via absolute photometry, which is demanding…
A Deeper Solution to the Actual Geometry of CCD Mosaic Chips
Z. J. Zheng, Q. Y. Peng, A. Vienne +2
We present a solution to determine the actual or physical relative positions between CCD chips. Due to the limited depth of the Gaia catalogue, there may be few stars identified fr…
Using Gaia DR2 to solve differential color refraction and charge transfer efficiency issues
F. R. Lin, Q. Y. Peng, Z. J. Zheng
The Gaia DR2 catalog released in 2018 gives information about more than one billion stars, including their extremely precise positions that are not affected by the atmosphere, as w…
Investigation and Application of Fitting Models for Centering Algorithms in Astrometry
F. R. Lin, Q. Y. Peng, Z. J. Zheng +2
To determine the precise positions of stars in CCD frames, various centering algorithms have been proposed for astrometry. The effective point spread function (ePSF) and the Gaussi…
Characterization of precision premium in astrometry
F. R. Lin, J. H. Peng, Z. J. Zheng +1
Precision premium, a concept in astrometry that was firstly presented by Pascu in 1994, initially means that the relative positional measurement of the Galilean satellites of Jupit…