Doppler follow-up of OGLE transiting companions in the Galactic bulge

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Bouchy, F (Author) Other; Pont, F (Author) Other; Melo, C (Author) Other; N.C. Santos (Author) Other; Mayor, M (Author) Other; Queloz, D (Author) Other; Udry, S (Author) Other

Journal

Title: Astronomy and Astrophysics

Vol. 431

Pages: 1105-1121

ISSN: 0004-6361

Publisher: EDP Sciences

Indexing

ISI Web of Knowledge - 127 Citations

Scopus - 122 Citations

Other information

Authenticus ID: P-000-4BT

DOI: 10.1051/0004-6361:20041723

Abstract (EN): Two years ago, the OGLE-III survey ( Optical Gravitational Lensing Experiment) announced the detection of 54 short period multi-transiting objects in the Galactic bulge (Udalski et al. 2002a, b). Some of these objects were considered to be potential hot Jupiters. In order to determine the true nature of these objects and to characterize their actual mass, we conducted a radial velocity follow-up of 18 of the smallest transiting candidates. We describe here our procedure and report the characterization of 8 low-mass star-transiting companions, 2 grazing eclipsing binaries, 2 triple systems, 1 confirmed exoplanet (OGLE-TR-56b), 1 possible exoplanet (OGLE-TR- 10b), 1 clear false positive and 3 unsolved cases. The variety of cases encountered in our follow-up covers a large part of the possible scenarios occurring in the search for planetary transits. As a by-product our program yields precise masses and radii of low mass stars.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17