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Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2000

HD 209458 planetary transits from Hipparcos photometry

Résumé

During its 39-month mission, Hipparcos observed the star HD 209458 on 89 occasions. Five of these observations are shown to correspond to epochs of planetary transits, with a 2.3±0.4% mean decrease of flux in the Hpband being observed during the transits. As a result of the long temporal baseline of more than 8 years between the Hipparcos and radial velocity measurements, an accurate orbital period of P =3 .524739 ± 0.000014 days can be derived from the Hipparcos photometric data.
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hal-02055062 , version 1 (08-03-2019)

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N. Robichon, Frédéric Arenou. HD 209458 planetary transits from Hipparcos photometry. Astronomy and Astrophysics - A&A, 2000, 355, pp.295-298. ⟨hal-02055062⟩
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