Analytical fit to the luminosity distance for flat cosmologies with a cosmological constant: Brief note

1996
10 pages
Published in:
  • Astron.Astrophys.Suppl.Ser. 120 (1996) 49,
  • Astrophys.J.Suppl. 120 (1999) 49
e-Print:

Citations per year

1997200420112018202402468
Abstract: (arXiv)
We present a fitting formula for the luminosity and angular diameter distances in cosmological models with pressureless matter, a cosmological constant and zero spatial curvature. The formula has a relative error of less than 0.4% for 0.2<\Omega_0<1 for any redshift, and a global relative error of less than 4% for any choice of parameters.