yt.frontends.enzo.simulation_handling.EnzoCosmology.angular_scale¶

EnzoCosmology.angular_scale(z_i, z_f)¶

The proper transverse distance between two points at redshift z_f observed at redshift z_i per unit of angular separation.

Parameters:	z_i : float The redshift of the observer. z_f : float The redshift of the observed object.

Examples

>>> co = Cosmology()
>>> print co.angular_scale(0., 1.).in_units("kpc / arcsec")