The orbit of hot Jupiter WASP-4 b is decaying at a rate corresponding to a tidal quality factor Q'_* ≈ 80,000, which only the most massive, oldest, and largest stellar models can explain.
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The Orbit of WASP-4 b is in Decay
The orbit of hot Jupiter WASP-4 b is decaying at a rate corresponding to a tidal quality factor Q'_* ≈ 80,000, which only the most massive, oldest, and largest stellar models can explain.