2002AJ....123.1013L -
Astron. J., 123, 1013-1022 (2002/February-0)
Absolute properties of the main-sequence eclipsing binary star WW Camelopardalis.
LACY C.H.S., TORRES G., CLARET A. and SABBY J.A.
Abstract (from CDS):
We present absolute photometric observations in uvbyβ and 5759 differential observations in the V filter (the most complete light curve ever obtained) measured by a robotic telescope, as well as radial velocities from spectroscopic observations of the detached, eccentric, 2.3 day, double-lined, eclipsing binary star WW Camelopardalis. Absolute dimensions of the components are determined with high precision (better than 1% in the masses and radii) for the purpose of testing various aspects of theoretical modeling. We obtain 1.920±0.013 M☉ and 1.911±0.016 R☉ for the primary, and 1.873±0.018 M☉ and 1.808±0.014 R☉ for the secondary. The effective temperatures and interstellar reddening of the stars are accurately determined from new uvbyβ photometry: 8350±135 K for the primary and 8240±135 K for the secondary, corresponding to a spectral type of A4m for both, and 0.294 mag for E_b-y_. The metallic-lined character of the stars is revealed by high-resolution spectroscopy and uvbyβ photometry. Spectral line widths give rotational velocities that are synchronous with the orbital motion in a slightly eccentric orbit (e=0.0098). The components of WW Cam are main-sequence stars with an age of about 490 Myr according to models.
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Journal keyword(s):
Stars: Binaries: Eclipsing - Stars: Binaries: Spectroscopic - Stars: Evolution - Stars: Fundamental Parameters - stars: individual (WW Camelopardalis)
Simbad objects:
21
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