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FIZIKA B 10 (2001) 4, 357-366
 
SEPARATION TECHNIQUES FOR DISENTANGLING OF COMPOSITE SPECTRA
SAŠA ILIJIĆa, HERMAN HENSBERGEb and KREŠIMIR
PAVLOVSKIc
aFaculty of Geodesy, University of Zagreb, Kačićeva 26,
HR-10000 Zagreb, Croatia
bRoyal Observatory of Belgium, Ringlaan 3, B-1180 Brussel,
Belgium
cDepartment of Physics, Faculty of Sciences, University of
Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
E-mail address: kresimir@phy.hr
Dedicated to Professor Kseno Ilakovac on the occasion of his 70th
birthday
Received 20 June 2001; Accepted 21 January 2002
Online 6 April 2002
Disentangling of composite spectra is a promissing technique for the analysis of
double-lined spectroscopic binary systems. The technique makes use of a separation routine
to extract model-component spectra out of a time series of observed composite spectra.
Focusing on the differences between two possible approaches in the implementation of the
separation routine, we compare the resulting limitations. We perform test runs on
artificial data and conclude that separation in the wavelength domain is more versatile in
several aspects, while the computational efficiency of separation in the Fourier domain
allows working with larger data sets which is beneficial in a fully-blown disentangling
process.
PACS numbers: 97.80.Fk, 39.30.+w
UDC 531.755
Keywords: double-lined spectroscopic binary systems, composite spectra, disentangling,
test runs, wavelength domain, Fourier domain
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