The Age-Redshift Relation for Standard Cosmology

Abstract

We present compact, analytic expressions for the age-redshift relation $\tau (z)$ for standard Friedmann-Lema\^ \itre-Robertson-Walker (FLRW) cosmology. The new expressions are given in terms of incomplete Legendre elliptic integrals and evaluate much faster than by direct numerical integration.

13 pages, 3 figures

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