Detection of Thermal Emission from an Extrasolar Planet

@article{Charbonneau2005DetectionOT,
  title={Detection of Thermal Emission from an Extrasolar Planet},
  author={D. Charbonneau and L. Allen and S. Megeath and G. Torres and R. Alonso and T. Brown and R. Gilliland and D. Latham and G. Mandushev and F. T. O'Donovan and A. Sozzetti},
  journal={The Astrophysical Journal},
  year={2005},
  volume={626},
  pages={523-529}
}
We present Spitzer Space Telescope infrared photometric time series of the transiting extrasolar planet system TrES-1. The data span a predicted time of secondary eclipse, corresponding to the passage of the planet behind the star. In both bands of our observations, we detect a flux decrement with a timing, amplitude, and duration as predicted by published parameters of the system. This signal represents the first direct detection of (i.e. the observation of photons emitted by) a planet… Expand

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