A Cosmology Calculator for the World Wide Web
Abstract
A cosmology calculator that computes times and distances as a function of redshift for user-defined cosmological parameters has been made available online. This paper gives the formulae used by the cosmology calculator and discusses some of its implementation. A version of the calculator that allows one to specify the equation-of-state parameter w and w', and one for converting the light-travel times usually given in the popular press into redshifts, is also located at the same site.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- December 2006
- DOI:
- 10.1086/510102
- arXiv:
- arXiv:astro-ph/0609593
- Bibcode:
- 2006PASP..118.1711W
- Keywords:
-
- Cosmology: Miscellaneous;
- Methods: Miscellaneous;
- Astrophysics
- E-Print:
- 8 pages with 1 included figure. Cosmology calculator available at http://www.astro.ucla.edu/~wright/CosmoCalc.html, light travel time converter at http://www.astro.ucla.edu/~wright/DlttCalc.html and the advanced cosmology calculator at http://www.astro.ucla.edu/~wright/ACC.html Revised to fix a typo, add a reference, and match the accepted version to be published in the PASP