FUNCTION  fCosmoLookBackTime

Returns the time interval between now and a particular redshift.

Parameters:
  • @z float --/D redshift
  • Returns LookBackTime float --/D look back time --/U GYrs
    select dbo.fCosmoLookBackTime(0.1)
    returns 1.30154246076688
    see also fCosmoAgeOfUniverse and fCosmoTimeInterval

    • Input and output parameters

    nametypelengthinoutpnum
     float8input0
    @zfloat8input1