z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b

Journal Article · Wed Aug 01 00:00:00 EDT 2012 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/201/2/36· OSTI ID:22047595

Burton, J R; Watson, C A; Pollacco, D ^[1]; Littlefair, S P; Dhillon, V S ^[2]; Gibson, N P ^[3]

---

1. Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)
2. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom)
3. Department of Physics, University of Oxford, Oxford OX1 3RH (United Kingdom)

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{sub 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.

• OSTI ID: 22047595
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 201, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTRONOMY
ASTROPHYSICS
CAMERAS
CHARGE-COUPLED DEVICES
DEPTH
DETECTION
ECLIPSE
ERRORS
ORBITS
PLANETS
SATELLITE ATMOSPHERES
SATELLITES
STARS
TELESCOPES
WAVELENGTHS