Computer Science – Numerical Analysis
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sva....22..372s&link_type=abstract
(Astronomicheskii Zhurnal, vol. 55, May-June 1978, p. 649-659.) Soviet Astronomy, vol. 22, May-June 1978, p. 372-377. Translati
Computer Science
Numerical Analysis
Astronomical Spectroscopy, Data Reduction, Instrument Errors, Line Spectra, Numerical Analysis, Error Correcting Devices, Fourier Transformation, Iterative Solution, Line Shape, Spectrophotometers
Scientific paper
Two numerical methods for correcting observed spectral line profiles for the effect of the instrument profile are examined: the Burger-van Sittert technique and Fourier transformation with regularization. It is shown that both methods yield similar results in the case of a spectral line whose half-width is at least twice as large as the half-width of the instrument profile. However, for a line with a narrower profile, Fourier transformation with regularization is found to yield a better solution than the Burger-van Sittert technique.
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