paper

When can we compute analytically lookback time, age of the universe, and luminosity distance?

arXiv:2204.08579 · doi:10.1140/epjc/s10052-022-10519-2

Abstract

In Friedmann-Lemaître-Robertson-Walker cosmology, it is sometimes possible to compute analytically lookback time, age of the universe, and luminosity distance versus redshift, expressing them in terms of a finite number of elementary functions. We classify these situations using the Chebyshev theorem of integration and providing examples.

arXiv comment10 pages, latex

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