# Detection of visible light from the darkest world

@article{Kipping2011DetectionOV,
title={Detection of visible light from the darkest world},
author={David M. Kipping and David S. Spiegel},
journal={Monthly Notices of the Royal Astronomical Society: Letters},
year={2011},
volume={417}
}
• Published 2011
• Physics
• Monthly Notices of the Royal Astronomical Society: Letters
We present the detection of visible light from the planet TrES-2b, the darkest exoplanet currently known. By analysis of the orbital photometry from publicly available Kepler data (0.4–0.9 μm), we determine a day–night contrast amplitude of 6.5 ± 1.9 ppm (parts per million), constituting the lowest amplitude orbital phase variation discovered. The signal is detected to 3.7σ confidence and persists in six different methods of modelling the data and thus appears robust. In contrast, we are unable… Expand

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#### References

SHOWING 1-10 OF 25 REFERENCES
Detection of Planetary Emission from the Exoplanet TrES-2 Using Spitzer/IRAC
We present here the results of our observations of TrES-2 using the Infrared Array Camera on Spitzer. We monitored this transiting system during two secondary eclipses, when the planetary emission isExpand
The High Albedo of the Hot Jupiter Kepler-7 B
Hot Jupiters are expected to be dark from both observations (albedo upper limits) and theory (alkali metals and/or TiO and VO absorption). However, only a handful of hot Jupiters have been observedExpand
TrES-2 : The first transiting planet in the kepler field
We announce the discovery of the second transiting hot Jupiter discovered by the Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbits the nearby star GSC 03549-02811 every 2.47063Expand
A search for starlight reflected from ν And's innermost planet
• Physics
• 2001
In data from three clear nights of echelle spectroscopy in 2000 October/November, and using improved Doppler tomographic signal-analysis techniques, we have carried out a deep search for starlightExpand
A new upper limit on the reflected starlight from τ Bootis b
• Physics
• 2003
Using improved Doppler tomographic signal-analysis techniques, we have carried out a deep search for starlight reflected from the giant planet orbiting the star τ Bootis. We combined echelle spectraExpand
The Very Low Albedo of an Extrasolar Planet: MOST Space-based Photometry of HD 209458
Measuring the albedo of an extrasolar planet provides insight into its atmospheric composition and its global thermal properties, including heat dissipation and weather patterns. Such a measurementExpand
NEAR-INFRARED THERMAL EMISSION FROM THE HOT JUPITER TrES-2b: GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE*
• Physics
• 2010
We present near-infrared Ks-band photometry bracketing the secondary eclipse of the hot Jupiter TrES-2b using the Wide-field Infrared Camera on the Canada-France-Hawaii Telescope. We detect itsExpand
Analysis of Kepler's short-cadence photometry for TrES-2b
• Physics
• 2011
We present an analysis of 18 short-cadence (SC) transit lightcurves of TrES-2b using quarter 0 (Q0) and quarter 1 (Q1) from the Kepler Mission. The photometry is of unprecedented precision, 237ppmExpand
Optical Albedo Theory of Strongly Irradiated Giant Planets: The Case of HD 209458b
• Physics
• 2008
We calculate a new suite of albedo models for close-in extrasolar giant planets and compare with the recent stringent upper limit for HD 209458b of Rowe et al. using MOST. We find that all modelsExpand
The changing phases of extrasolar planet CoRoT-1b
• Physics, Medicine
• Nature
• 2009
Optical photometric data obtained over 36 planetary orbits of the transiting hot Jupiter CoRoT-1b are consistent with the nightside hemisphere of the planet being entirely black, with the dayside flux dominating the optical phase curve. Expand