出典:Wiktionary
出典:『Wiktionary』 (2025/06/26 20:57 UTC 版)
naked singularity (plural naked singularities)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/15 07:46 UTC 版)
In general relativity, a naked singularity is a gravitational singularity, without an event horizon. In a black hole, there is a region around the singularity, the event horizon, where the gravitational force of the singularity is strong enough so that light cannot escape. Hence, the singularity cannot be directly observed. A naked singularity, by contrast, is observable from the outside.