The ``missing link'': A 4-day period transiting exoplanet around OGLE-TR-111
Abstract
We report the discovery of a transiting hot Jupiter around OGLE-TR-111, from our radial velocity follow-up of OGLE transiting candidates in Carina. The planet has a mass of 0.53 ± 0.11 MJ and a radius of 1.0+0.13-0.06 RJ. Three transiting exoplanets have already been found among OGLE candidates, all with periods near 1.5 days. The planet presented here, with P=4.0 days, is the first exoplanet detected by transits with the characteristics of a ``normal'' hot Jupiter, as found in abundance by radial velocity surveys. The radius of OGLE-TR-111b and the scarcity of hot Jupiters detected among OGLE transit candidates tend to indicate that the case of HD 209458b, with a radius of 1.4 RJ, is exceptional, with most hot Jupiters being smaller.
Based on observations collected with the FLAMES+UVES spectrograph at the VLT/UT2 Kueyen telescope (Paranal Observatory, ESO, Chile).- Publication:
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Astronomy and Astrophysics
- Pub Date:
- October 2004
- DOI:
- 10.1051/0004-6361:200400066
- arXiv:
- arXiv:astro-ph/0408499
- Bibcode:
- 2004A&A...426L..15P
- Keywords:
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- techniques: radial velocities;
- instrumentation: spectrographs;
- stars: planetary systems;
- Astrophysics
- E-Print:
- 4 pages, 4 figures, to be published in A&