English

Unit conversions and collected numbers in cosmology

Cosmology and Nongalactic Astrophysics 2022-04-11 v2 High Energy Physics - Phenomenology

Abstract

This note collects together useful unit conversions and numerical values from early universe cosmology. It is a quick reference that can be used to make easy order-of-magnitude estimates. Included are tables for unit conversions, the thermal history of the universe, and collected properties of astronomical objects. The note also introduces a modifiable Mathematica package NaturalUnits (newest version 2.0), which makes it easy to convert between natural and physical units.

Cite

@article{arxiv.2110.12251,
  title  = {Unit conversions and collected numbers in cosmology},
  author = {Eemeli Tomberg},
  journal= {arXiv preprint arXiv:2110.12251},
  year   = {2022}
}

Comments

7 pages, 7 tables. Corrected typos, updated for v2.0 of the Mathematica package

R2 v1 2026-06-24T07:07:42.613Z