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Black holes: from event horizons to trapping horizons - LUTH ...

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Concept of black hole and <strong>event</strong> horizon<br />

Another non-local feature: teleological nature of <strong>event</strong><br />

<strong>horizons</strong><br />

[Booth, Can. J. Phys. 83, 1073 (2005)]<br />

The classical black hole boundary, i.e.<br />

the <strong>event</strong> horizon, responds in advance<br />

<strong>to</strong> what will happen in the future.<br />

Eric Gourgoulhon (<strong>LUTH</strong>) <strong>Black</strong> <strong>holes</strong>: <strong>trapping</strong> <strong>horizons</strong> CERN, 17 March 2010 7 / 38

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