Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates. V. Follow-up of 30 OGLE Transits. New Candidates

Abstract

We used VLT/VIMOS images in the V band to obtain light curves of extrasolar planetary transits OGLE-TR-111 and OGLE-TR-113, and candidate planetary transits: OGLE-TR-82, OGLE-TR-86, OGLE-TR-91, OGLE-TR-106, OGLE-TR-109, OGLE-TR-110, OGLE-TR-159, OGLE-TR-167, OGLE-TR-170, OGLE-TR-171. Using difference imaging photometry, we were able to achieve millimagnitude errors in the individual data points. We present the analysis of the data and the light curves, by measuring transit amplitudes and ephemerides, and by calculating geometrical parameters for some of the systems. We observed 9 OGLE objects at the predicted transit moments. Two other transits were shifted in time by a few hours. For another seven objects we expected to observe transits during the VIMOS run, but they were not detected. The stars OGLE-TR-111 and OGLE-TR-113 are probably the only OGLE objects in the observed sample to host planets, with the other objects being very likely eclipsing binaries or multiple systems. In this paper we also report on four new transiting candidates which we have found in the data.

11 pages, 17 figures, accepted for publication in A&A

Cited by in corpus (9)

• Detection of the ellipsoidal and the relativistic beaming effects in the CoRoT-3 lightcurve
• Six High-Precision Transits of OGLE-TR-113b
• Lack of Transit Timing Variations of OGLE-TR-111b: A re-analysis with six new epochs
• Using Stellar Densities to Evaluate Transiting Exoplanetary Candidates
• Five New Transit Epochs of the Exoplanet OGLE-TR-111b
• The VVV Infrared Variability Catalog (VIVA-I)
• TraMoS IV: Discarding the Quick Orbital Decay Hypothesis for OGLE-TR-113b
• Variability and stellar populations with deep optical-IR images of the Milky Way disk: matching VVV with VLT/VIMOS data
• Precise determination of fundamental parameters of six exoplanet host stars and their planets