Volume 494, Number 1, January IV 2009
|Page(s)||399 - 402|
|Published online||27 November 2008|
Notes on the disentangling of spectra
I. Enhancement in precision
Astronomical Institute, Academy of Sciences, Boční II 1401, 141 31 Praha 4, Czech Republic e-mail: email@example.com
Accepted: 16 October 2008
Context. The technique of disentangling has been applied to numerous high-precision studies of spectroscopic binaries and multiple stars. Although, its possibilities have not yet been fully understood and exploited.
Aims. Theoretical background aspects of the method, its latest improvements and hints for its use in practice are explained in this series of papers.
Methods. In this first paper of the series, we discuss spectral-resolution limitations due to a discrete representation of the observed spectra and introduce a new method how to achieve a precision higher than the step of input-data binning.
Results. Based on this principle, the latest version of the KOREL code for Fourier disentangling achieves an increase in precision for an order of magnitude.
Key words: line: profiles / techniques: spectroscopic / stars: binaries: spectroscopic / methods: numerical
© ESO, 2009
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