Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates. II. Transits of OGLE-TR-113-b in the Optical and Near-IR
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...
| Autores: | , , , , , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/21702 |
| Acesso em linha: | http://hdl.handle.net/11336/21702 |
| Access Level: | acceso abierto |
| Palavra-chave: | Astrophysics https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Resumo: | 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 ¼ 0:0232 0:0038 AU, orbital period P ¼ 1:4324752 0:0000015 day, i ¼ 86:7Y90, and Rp ¼ 1:09 0:09 RJ. These values are in excellent agreement with previous works. Assuming a mass Mp ¼ 1:32 0:19 MJ for the planet, we obtain its mean density ¼ 1:26 0:50 g cm3 , 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. |
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