yt.frontends.enzo.simulation_handling.EnzoCosmology.z_from_t¶

EnzoCosmology.z_from_t(my_time)¶

Compute the redshift from time after the big bang. This is based on Enzo’s CosmologyComputeExpansionFactor.C, but altered to use physical units.

Parameters:	my_time : float Age of the Universe in seconds.

Examples

>>> co = Cosmology()
>>> print co.t_from_z(4.e17)