A critique of disentangling as a method of deriving spectroscopic orbits

Details A critique of disentangling as a method of deriving spectroscopic orbits A critique of disentangling as a method of deriving spectroscopic orbits

1997-11-03

arxiv.org/abs/astro-ph/9711011v1

A&A, 331, 167

Astronomy and Astrophysics

Astrophysics

4 pages, LaTeX, including 2 encapsulated postscript figures. Accepted for publication in Astronomy and Astrophysics

Scientific paper

Multiple sets of synthetic spectra of OB-binary stars are used to test the suitability of disentangling for deriving accurate spectroscopic orbits. Given a set of spectra with broad phase coverage and sufficient total integration time (almost independent of the number of spectra), it appears that disentangling yields accurate and reliable semi-amplitudes of the spectroscopic orbits (other parameters being fixed). Methods for estimating the uncertainties on the derived semi-amplitudes are investigated.

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