Abstract
We present the ground-based detection of the secondary eclipse of the transiting exoplanet WASP-19b. The observations were made in the Sloan z' band using the ULTRACAM triple-beam CCD camera mounted on the New Technology Telescope. The measurement shows a 0.088% ± 0.019% eclipse depth, matching previous predictions based on H- and K-band measurements. We discuss in detail our approach to the removal of errors arising due to systematics in the data set, in addition to fitting a model transit to our data. This fit returns an eclipse center, T 0, of 2455578.7676 HJD, consistent with a circular orbit. Our measurement of the secondary eclipse depth is also compared to model atmospheres of WASP-19b and is found to be consistent with previous measurements at longer wavelengths for the model atmospheres we investigated.
Original language | English |
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Article number | 36 |
Number of pages | 10 |
Journal | Astrophysical Journal |
Volume | 201 |
Issue number | 2 |
DOIs | |
Publication status | Published - 02 Aug 2012 |
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics