Absolute Properties of the Eccentric Eclipsing Binary Star FT Orionis

Details Absolute Properties of the Eccentric Eclipsing Binary Star FT Orionis Absolute Properties of the Eccentric Eclipsing Binary Star FT Orionis

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aj....141..195s&link_type=abstract

The Astronomical Journal, Volume 141, Issue 6, article id. 195 (2011).

Astronomy and Astrophysics

Astronomy

Binaries: Eclipsing, Binaries: Spectroscopic, Stars: Fundamental Parameters, Stars: Individual: Ft Ori

Scientific paper

Accurate absolute properties are determined for the first time for the 3.15 day period eccentric eclipsing binary star FT Ori based on new absolute photometry, five differential light curves, and a radial velocity curve. The stars appear to be normal for their spectral types, A0 + A2. The orbit is highly eccentric (e = 0.409) and shows apsidal motion with a period of 536 years. The absolute properties and the degree of central mass concentration of the stars are consistent with current theoretical models at an age of 190 Myr.

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