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

doi:10.1088/0004-6256/136/1/267

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

School of Physics and Astronomy

Massachusetts Institute of Technology
Harvard-Smithsonian Center for Astrophysics
Tel Aviv University
Planetary Science Institute

Research output: Contribution to journal › Article › peer-review

21 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 language	English
Pages (from-to)	267-271
Number of pages	5
Journal	Astronomical Journal
Volume	136
Issue number	1
DOIs	https://doi.org/10.1088/0004-6256/136/1/267
State	Published - 1 Jul 2008

Keywords

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

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10.1088/0004-6256/136/1/267

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title = "The transit light curve project. VIII. Six occultations of the exoplanet tres-3",

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.",

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AU - Winn, Joshua N.

AU - Holman, Matthew J.

AU - Shporer, Avi

AU - Fernndez, José

AU - Mazeh, Tsevi

AU - Latham, David W.

AU - Charbonneau, David

AU - Everett, Mark E.

PY - 2008/7/1

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N2 - 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.

AB - 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.

KW - Planetary systems

KW - Stars: individual (TrES-3, GSC 0308900929)

KW - Techniques: photometric

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

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Keywords

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