Millimagnitude photometry for transiting extrasolar planetary candidates. II. transits of OGLE-TR-113-B in the optical and near-ir

Diaz, RF; Ramirez, S.; Fernandez, JM; Gallardo J.; Gieren, W.; Ivanov, VD; Mauas, P; Minniti, D; Pietrzynski G.; Pérez F.; RUIZ, MT; Udalski, A; Zoccali, M

Abstract

We present precise V- and Ks-band transit photometry for the planetary host star OGLE-TR-113. Using the Ks-band photometry, we confirm the dwarf nature of OGLE-TR-113 and obtain new estimates for its effective temperature, distance, and reddening. We employ the V-band photometry to obtain planetary and orbit parameters from the transit fit, a = 0.0232 ± 0.0038 AU, orbital period P = 1.4324752 ± 0.0000015 day, i = 86.7-90, and Rp = 1.09 ± 0.09 RJ. These values are in excellent agreement with previous works. Assuming a mass Mp = 1.32 ± 0.19 MJ for the planet, we obtain its mean density ρ = 1.26 ± 0.50 g cm-3, also in agreement with previous works. The transit observed in the Ks band has a larger scatter, and we find its amplitude to be consistent with that in the V band. In this way, we find an independent confirmation of the planetary nature of OGLE-TR-113b. © 2007. The American Astronomical Society. All rights reserved.

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Título según WOS: Millimagnitude photometry for transiting extrasolar planetary candidates. II. transits of OGLE-TR-113-B in the optical and near-ir
Título según SCOPUS: Millimagnitude photometry for transiting extrasolar planetary candidates. II. Transits of OGLE-TR-113-b in the optical and near-ir
Título de la Revista: ASTROPHYSICAL JOURNAL
Volumen: 660
Número: 1
Editorial: IOP PUBLISHING LTD
Fecha de publicación: 2007
Página de inicio: 850
Página final: 857
Idioma: English
URL: http://stacks.iop.org/0004-637X/660/i=1/a=850
DOI:

10.1086/512721

Notas: ISI, SCOPUS