Two new “very hot Jupiters” among the OGLE transiting candidates (original) (raw)

A&A 421, L13-L16 (2004)

Letter to the Editor

1 Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, BP 8, 13376 Marseille Cedex 12, France
2 Observatoire de Genève, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland
3 Centro de Astronomia e Astrofísica da Universidade de Lisboa, Tapada da Ajuda, 1349-018 Lisboa, Portugal
4 European Southern Observatory, Casilla 19001, Santiago 19, Chile

Corresponding author: F. Bouchy, Francois.Bouchy@oamp.fr

Received: 14 April 2004
Accepted: 12 May 2004

Abstract

As a result of a radial velocity follow-up of OGLE planetary transit candidates in Carina, we report the discovery of two new transiting planets with very short orbital periods: OGLE-TR-113 with $m=1.35 \pm 0.22~M_{\rm Jup}$ , $r=1.08^{+0.07}_{-0.05}~R_{\rm Jup}$ , $P=1.43$ days, and OGLE-TR-132 with $m=1.01\, \pm\, 0.31~M_{\rm Jup}$ , $r=1.15^{+0.80}_{-0.13}~R_{\rm Jup}$ , $P=1.69$ days. These detections bring to three the number of known “very hot Jupiter” (Jovian exoplanets like OGLE-TR-56 with periods around 1.5 days). This indicates that the accumulation of periods around 3 days found in radial velocity surveys does not reflect an absolute limit.

Key words: techniques: radial velocities / instrumentation: spectrographs / stars: planetary systems

Based on observations collected with the FLAMES+UVES spectrograph at the VLT/UT2 Kueyen telescope (Paranal Observatory, ESO, Chile: program 72.C-0191).