Black Holes: Absolute Rigidity ⚡ экспресс
Original: "No Love for black holes: tightest constraints on tidal Love numbers of black holes from GW250114"
Gravitational waves from the latest merger prove that black holes don't deform one bit.
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Black holes turn out to be perfectly rigid: a new record-breaking gravitational wave signal shows that they resist tidal stretching. This rules out some theories of 'fuzzy' quantum holes and boson stars.
🎯 If a black hole the size of a soccer ball were subjected to tidal forces, the allowable deformation of its horizon would be less than the thickness of a proton.
\tilde{\Lambda} < 34.8
Dimensionless parameter of tidal rigidity: the closer to zero, the harder it is to deform an object.