European Physical Journal C: Particles and Fields (Jun 2022)
When can we compute analytically lookback time, age of the universe, and luminosity distance?
Abstract
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.