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Fiber Positioning Test

Published online by Cambridge University Press:  06 January 2014

Yiqiao Dong ,
Haotong Zhang ,
Zhongrui Bai ,
Hailong Yuan  and
Yajuan Lei
Yiqiao Dong
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: dyq@lamost.org
Haotong Zhang
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: dyq@lamost.org
Zhongrui Bai
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: dyq@lamost.org
Hailong Yuan
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: dyq@lamost.org
Yajuan Lei
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: dyq@lamost.org
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Abstract

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With the concern that observed flux is very sensitive upon fiber positions, we develop a novel approach measuring the error of fiber positions in this work. More specifically, we compute two orthogonal groups of the flux ratio before and after moving the fiber a few arcseconds, and correct the system coordinate transformation based on the computed fiber position error.

Keywords

techniques: spectroscopicinstrumentation: spectrographs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S298: Setting the scene for Gaia and LAMOST , May 2013 , pp. 403
Copyright
Copyright © International Astronomical Union 2014