Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles

Details Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pasa...27..290z&link_type=abstract

Publications of the Astronomical Society of Australia, Volume 27, Issue 3, pp. 290-295.

Astronomy and Astrophysics

Astronomy

1

Line: Profiles, Methods: Data Analysis, Techniques: Spectroscopic

Scientific paper

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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