K-band transit and secondary eclipse photometry of exoplanet OGLE-TR-113b
| dc.creator | Snellen, I. A. G. | |
| dc.creator | Covino, E. | |
| dc.date | 2006-11-29 | |
| dc.date.accessioned | 2026-07-07T10:21:04Z | |
| dc.date.available | 2026-07-07T10:21:04Z | |
| dc.description | We present high precision K-band photometry of the transit and secondary eclipse of extrasolar planet OGLE-TR-113, using the SOFI near-infrared instrument on ESO's NTT. Data were taken in 5 second exposures over two periods of 3-4 hours, using random jitter position offsets. In this way, a relative photometric precision of ~1% per frame was achieved, avoiding systematic effects that seem to become dominant at precisions exceeding this level, and resulting in an overall accuracy of 0.1% per ~10 minutes. The observations of the transit show a flat bottom light-curve indicative of a significantly lower stellar limb-darkening at near-infrared than at optical wavelengths. The observations of the secondary eclipse result in a 3 sigma detection of emission from the exoplanet at 0.17+-0.05%. However, residual systematic errors make this detection rather tentative. | |
| dc.description | 6 pages, 7 figures: MNRAS accepted | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0611877 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0611877 | |
| dc.identifier | Mon.Not.Roy.Astron.Soc.375:307-312,2007 | |
| dc.identifier | doi:10.1111/j.1365-2966.2006.11302.x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/175051 | |
| dc.subject | Astrophysics | |
| dc.title | K-band transit and secondary eclipse photometry of exoplanet OGLE-TR-113b | |
| dc.type | text |