Light-tracing
like a siren that sounds lower as the ambulance drives away
Technical definition
The effect of the redshift of light emitted by objects in the source plane, which can be used to determine the locations and velocities of those objects.
like a siren that sounds lower as the ambulance drives away
The effect of the redshift of light emitted by objects in the source plane, which can be used to determine the locations and velocities of those objects.