DF Technology Abbreviation

Dual-Frequency

Dual-Fuel

Dennis Feltham

Damped Frwquency

Dark Flow

Dark flow is an astrophysical term describing a possible non-random component of the peculiar velocity of galaxy clusters. The actual measured velocity is the sum of the velocity predicted by Hubble's Law plus a possible small and unexplained (or dark) velocity flowing in a common direction. In 2013, data from the Planck spacecraft showed no evidence of "dark flow".

Data Facility

Data Fanout

Data Fetch

Data Fields