In cosmology one labels the time t since the Big Bang in terms of the redshift of light emitted at t, as we see it now. In this Note we derive a formula that relates t to z which is valid for all redshifts. One can go back in time as far as one wishes, but not to the Big Bang at which the redshift tends to infinity.
|Number of pages||7|
|Journal||Foundations of Physics Letters|
|State||Published - 1 Jun 2006|
- Cosmic time
ASJC Scopus subject areas
- Physics and Astronomy (all)