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

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{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.

Authors:
; ;  [1]; ;  [2];  [3];  [4]
  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)
  4. Department of Physics and Astronomy, University of Warwick, Coventry CV4 7AL (United Kingdom)
Publication Date:
OSTI Identifier:
22047595
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 201; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTRONOMY; ASTROPHYSICS; CAMERAS; CHARGE-COUPLED DEVICES; DEPTH; DETECTION; ECLIPSE; ERRORS; ORBITS; PLANETS; SATELLITE ATMOSPHERES; SATELLITES; STARS; TELESCOPES; WAVELENGTHS

Citation Formats

Burton, J. R., Watson, C. A., Pollacco, D., Littlefair, S. P., Dhillon, V. S., Gibson, N. P., and Marsh, T. R., E-mail: jburton04@qub.ac.uk. z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b. United States: N. p., 2012. Web. doi:10.1088/0067-0049/201/2/36.
Burton, J. R., Watson, C. A., Pollacco, D., Littlefair, S. P., Dhillon, V. S., Gibson, N. P., & Marsh, T. R., E-mail: jburton04@qub.ac.uk. z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b. United States. doi:10.1088/0067-0049/201/2/36.
Burton, J. R., Watson, C. A., Pollacco, D., Littlefair, S. P., Dhillon, V. S., Gibson, N. P., and Marsh, T. R., E-mail: jburton04@qub.ac.uk. Wed . "z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b". United States. doi:10.1088/0067-0049/201/2/36.
@article{osti_22047595,
title = {z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b},
author = {Burton, J. R. and Watson, C. A. and Pollacco, D. and Littlefair, S. P. and Dhillon, V. S. and Gibson, N. P. and Marsh, T. R., E-mail: jburton04@qub.ac.uk},
abstractNote = {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.},
doi = {10.1088/0067-0049/201/2/36},
journal = {Astrophysical Journal, Supplement Series},
number = 2,
volume = 201,
place = {United States},
year = {Wed Aug 01 00:00:00 EDT 2012},
month = {Wed Aug 01 00:00:00 EDT 2012}
}