isolated horizon

Questions

What does isolated horizon mean?

In the context of black holes, a null hypersurface (a surface where light rays travel) that is in equilibrium with its surrounding environment.

How to pronounce isolated horizon

1. Open the pronunciation page — Open the Speakur entry for “isolated horizon”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “isolated horizon”.
4. Repeat and practice — Say “isolated horizon” aloud, matching stress and vowels until it feels natural.