Inference products and plotting code for "Some Times in Standard Cosmology"

2024/11/08 by L. T. Hergt, D. Scott, Hergt, Lukas Tobias +1
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Historical Astronomy and Related Studies #History and Developments in Astronomy #Relativity and Gravitational Theory

paper · pdf · doi:10.48550/arxiv.2411.07703

openalex publication_date 2024/11/08 · openalex created_date 2024/11/15 · openalex updated_date 2026/07/28

Abstract

The standard cosmological model is sufficiently well constrained that precise estimates can be provided for the redshift of various physically defined times in the chronology of the Universe. For example, it is well known that matter-radiation equality, recombination and reionisation happen at redshifts of around 3000, 1000 and 10, respectively, and these can be specified more precisely by fitting to data. What is less well known are the times in years (and their uncertainties) for these and other epochs in the history of the Universe. Here we provide precise time determinations for six epochs in cosmological history within the standard model, using data from the Planck satellite. Our main results are illustrated in a figure.

Related

• New dates for the eras of the universe from the Planck data
• Limits of time in cosmology
• The eras of radiation, matter, and dark energy: new information from the Planck Collaboration
• Use of Redshifts as Evidence of Dark Energy
• Changing Redshifts caused by a Changing Expansion Velocity of the Universe