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

Rodrigo F. Díaz, Sebastián Ramírez, José Miguel Fernández, José Gallardo, Wolfgang Gieren, Valentin D. Ivanov, Pablo Mauas, Dante Minniti, Grzegorz Pietrzynski, Felipe Pérez, María Teresa Ruíz, Andrzej Udalski, Manuela Zoccali

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)850-857
Number of pages8
JournalAstrophysical Journal
Volume660
Issue number1 I
DOIs
Publication statusPublished - 1 May 2007

Keywords

  • Planets and satellites: individual (OGLE-TR-113b)
  • Stars: individual (OGLE-TR-113) Online material: color figures

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint

Dive into the research topics of 'Millimagnitude photometry for transiting extrasolar planetary candidates. II. Transits of OGLE-TR-113-b in the optical and near-ir'. Together they form a unique fingerprint.

Cite this