transverse_comoving_distance

Protocols

StandardCosmology.transverse_comoving_distance()

DistanceMeasures.transverse_comoving_distance()

ComovingDistanceMeasures.transverse_comoving_distance()

HasTransverseComovingDistance.transverse_comoving_distance()

Reference

cosmo.transverse_comoving_distance(z: InputT, /) → Array

cosmo.transverse_comoving_distance(z1: InputT, z2: InputT, /) → Array

Transverse comoving distance \(d_M\) in Mpc.

This value is the transverse comoving distance at redshift z corresponding to an angular separation of 1 radian. This is the same as the comoving distance if \(\Omega_k\) is zero (as in the current concordance Lambda-CDM model).

Parameters:

zArray, positional-only

z1, z2Array, positional-only

Input redshifts. If one argument z is given, the distance \(d_M(0, z)\) is returned. If two arguments z1, z2 are given, the distance \(d_M(z_1, z_2)\) is returned.

Returns:

Array

The comoving transverse distance \(d_M\) in Mpc.