A binary merger origin for inflated hot Jupiter planets

@article{Martn2011ABM,
  title={A binary merger origin for inflated hot Jupiter planets},
  author={E. L. Mart{\'i}n and H. C. Spruit and Ramarao Tata},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={535},
  pages={1-6}
}
We hypothesize that hot Jupiters with inflated sizes represent a separate planet formation channel, the merging of two low-mass stars. We show that the abundance and properties of W UMa stars and low mass detached binaries are consistent with their being possible progenitors. The degree of inflation of the transiting hot Jupiters correlates with their expected spiral-in life time by tidal dissipation, 

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