Issue |
A&A
Volume 424, Number 3, September IV 2004
|
|
---|---|---|
Page(s) | L31 - L34 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:200400048 | |
Published online | 06 September 2004 |
Letter to the Editor
Accurate radius and mass of the transiting exoplanet OGLE-TR-132b*
1
LAM, Traverse du Siphon, BP8, Les Trois Lucs, 13376 Marseille Cedex 12, France e-mail: Claire.Moutou@oamp.fr
2
Observatoire de Genève, 51 Chemin des Maillettes,1290 Sauverny, Switzerland
Received:
8
July
2004
Accepted:
1
August
2004
The exoplanet OGLE-TR-132b belongs
to the new class of very hot giant planets, together with OGLE-TR-56b
and OGLE-TR-113b, detected by
their transits. Recently, radial velocity measurements provided a planetary
mass estimate for OGLE-TR-132b. The planet parameters, however, were poorly constrained,
because of the very shallow transit in the OGLE light curve.
In this letter, based on
new VLT/FORS2 photometric follow-up of OGLE-TR-132 of unprecedented quality (1.2 mmag relative photometry), we confirm the planetary nature of the orbiting object, and we derive an accurate
measurement of its radius and mass: 1.13 ± 0.08 RJ and 1.19 ± 0.13 MJ. The refined ephemeris of OGLE-TR-132 transits is 2 453 142.5888
and
1.689857 days.
Key words: planetary systems / stars: individual: OGLE-TR-132
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.