出典:Wiktionary
出典:『Wiktionary』 (2026/04/28 22:51 UTC 版)
From dark (“hidden”) + flow. From the motion of galaxy clusters due to a hidden influence, possibly from beyond the horizon of the observable universe.
dark flow (countable and uncountable, plural dark flows)
dark flow (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/28 02:16 UTC 版)
Dark flow is an astrophysical term describing a peculiar velocity of galaxy clusters. The actual measured velocity is the sum of the velocity predicted by Hubble's Law plus a small and unexplained (or dark) velocity flowing in a common direction.