The transit light curve project. VIII. Six occultations of the exoplanet tres-3

Joshua N. Winn, Matthew J. Holman, Avi Shporer, José Fernndez, Tsevi Mazeh, David W. Latham, David Charbonneau, Mark E. Everett

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We present photometry of the exoplanet host star TrES-3 spanning six occultations (secondary eclipses) of its giant planet. No flux decrements were detected, leading to 99%-confidence upper limits on the planet-to-star flux ratio of 2.4 × 10-4, 5.0 × 10-4, and 8.6 × 10-4 in the i-, z-, and R-bands respectively. The corresponding upper limits on the planet's geometric albedo are 0.30, 0.62, and 1.07. The upper limit in the i-band rules out the presence of highly reflective clouds, and is only a factor of 2-3 above the predicted level of thermal radiation from the planet.

Original languageEnglish (US)
Pages (from-to)267-271
Number of pages5
JournalAstronomical Journal
Volume136
Issue number1
DOIs
StatePublished - Jul 1 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Planetary systems
  • Stars: individual (TrES-3, GSC 0308900929)
  • Techniques: photometric

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    Winn, J. N., Holman, M. J., Shporer, A., Fernndez, J., Mazeh, T., Latham, D. W., Charbonneau, D., & Everett, M. E. (2008). The transit light curve project. VIII. Six occultations of the exoplanet tres-3. Astronomical Journal, 136(1), 267-271. https://doi.org/10.1088/0004-6256/136/1/267