Spectral disentangling of the metallic-lined binary system WW Aurigae

Details Spectral disentangling of the metallic-lined binary system WW Aurigae Spectral disentangling of the metallic-lined binary system WW Aurigae

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coska..38..437p&link_type=abstract

Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2, p. 437-438.

Astronomy and Astrophysics

Astronomy

Stars: Binary, Stars: Am, Methods: Spectroscopy

Scientific paper

WWAurigae is doubled-lined eclipsing binary system. Both components show Am characteristics. Recently, Southworth et al. (2005) measured
the properties of WWAur with accuracies of 0.4% in mass and 0.6% in radius, making these among the most accurately known for
any stars except the Sun. These properties are matched by theoretical
evolutionary models only for a high (2.5 times solar) metal abundance.
In a continuation of that study, we have reanalysed the time-series of 57 double-lined spectra (from the INT at La Palma) using spectral
disentangling to obtain high-quality separated spectra of the two stars.
Our goal is to further improve the determination of the effective temperatures and to study the peculiar chemical abundances of the two stars.

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