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Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles

  • Zhangqin Zhu (a1), Jia Zhu (a1), Hanqin Qin (a1), Chong Wang (a1) and Zhongfu Ye (a1)...

Abstract

A fibre spectrum profile fitting method based on the least-squares method is presented in this article. For each spectrum of one fibre in spatial orientation, two exponential functions are employed to approximate the profile. Experiments are performed with both simulated profiles and observed profiles to demonstrate the effectiveness of the algorithm. Specially, the proposed method has a better performance for profiles that are asymmetric or composed of multi-Gaussian functions.

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Copyright

Corresponding author

BCorresponding author. Email: yezf@ustc.edu.cn

References

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Becker, T., 2001, PhD Thesis, Potsdam University
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Qin, H. Q., Ye, Z. F. & Luo, A.-L., 2009, PASP, 121, 408
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Robertson, J. G., 1986, PASP, 1220, 1231
Roth, M. M. et al. , 2005, PASP, 117, 620
Sanchez, S. F., 2006, AN, 327, 850

Keywords

Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles

  • Zhangqin Zhu (a1), Jia Zhu (a1), Hanqin Qin (a1), Chong Wang (a1) and Zhongfu Ye (a1)...

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