Automated Spectral Reduction Pipelines

被引：3
|
作者：
Smith, Robert J. [1 ]
Piascik, Andrzej S. [1 ]
Steele, Lain A. [1 ]
Barnsley, Robert M. [1 ,2 ]
机构：
[1] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England
[2] Univ Oxford, Dept Phys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England
来源：
SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY IV | 2016年 / 9913卷
关键词：
data reduction; processing pipelines; CCD; bias; dark current; spectral flat field; LIVERPOOL-TELESCOPE;
D O I：
10.1117/12.2232771
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Liverpool Telescope automated spectral data reduction pipelines perform both removal of instrumental signatures and provide wavelength calibrated data products promptly after observation. Unique science drivers for each of three instruments led to novel hardware solutions which required reassessment of some of the conventional CCD reduction recipes. For example, we describe the derivation of bias and dark corrections on detectors with neither overscan or shutter. In the context of spectroscopy we compare the quality of flat fielding resulting from different algorithmic combinations of dispersed and non-dispersed sky and lamp flats in the case of spectra suffering from 2D spatial distortions.
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页数：20
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