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Some extra heat must be deposited deep inside them.","posed_since":"2001","precise":"Hot Jupiters receiving incident flux $F > \\sim 2x10^{8}\\,\\mathrm{erg}/\\mathrm{s}/\\mathrm{cm}^{2}$ have radii up to $\\sim 2\\,\\text{Jupiter radii}$, exceeding standard evolution models. Identify the mechanism that deposits heat in the interior: Ohmic dissipation, tidal heating, downward advection of heat by atmospheric circulation, or delayed contraction, by matching the radius anomaly versus $F$, planet mass and age.","problem_ref":null,"references":"","settled_by":"Measurement of the radius anomaly versus incident flux and age, including planets whose host stars have brightened (re-inflation test), compared with each mechanism's prediction.","status_note":"","title":"Why are many hot Jupiters larger than models 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