HD 174884: a strongly eccentric, short-period early-type binary system discovered by CoRoT

  title={HD 174884: a strongly eccentric, short-period early-type binary system discovered by CoRoT},
  author={Carla Maceroni and Josefina Montalb{\'a}n and Eric Michel and P. Harmanec and Andrej Pr{\vs}a and Maryline Briquet and Ewa Niemczura and Thierry Morel and Djazia Ladjal and Michel Auvergne and Annie Baglin and Frédéric Baudin and Claude Catal{\`a} and R'eza Samadi and Conny Aerts},
  journal={Astronomy and Astrophysics},
Accurate photometric CoRoT space observations of a secondary seismological target, HD 174884, led to the discovery that this star is an astrophysically important double-lined eclipsing spectroscopic binary in an eccentric orbit (e ∼ 0.3), unusual for its short 3. 65705 orbital period. The high eccentricity, coupled with the orientation of the binary orbit in space, explains the very unusual observed light curve with strongly unequal primary and secondary eclipses having the depth ratio of 1-to… 
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