Orbital Solutions and Absolute Elements of the Eclipsing Binary EE Aquarii

Details Orbital Solutions and Absolute Elements of the Eclipsing Binary EE Aquarii Orbital Solutions and Absolute Elements of the Eclipsing Binary EE Aquarii

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aj....139.1486w&link_type=abstract

The Astronomical Journal, Volume 139, Issue 4, pp. 1486-1490 (2010).

Astronomy and Astrophysics

Astronomy

1

Binaries: Close, Binaries: Eclipsing, Binaries: Spectroscopic

Scientific paper

EE Aqr is a 7.9 mag Algol variable with a 12 hr orbital period. The Wilson-Devinney program is used to simultaneously solve 11 previously published light curves together with two existing radial velocity curves. The resulting masses are M 1 = 2.24 ± 0.13 M sun and M 2 = 0.72 ± 0.04 M sun, and the radii are R 1 = 1.76 ± 0.03 R sun and R 2 = 1.10 ± 0.02 R sun. The system has the lower-mass component completely filling its Roche lobe. Its distance from Hipparcos observations is 112 ± 10 pc. An improved ephemeris is derived, and no deviations in the period over time were seen. Light and velocity curve parameters, orbital elements, and absolute dimensions are presented, plus a comparison is made with previous solutions.

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