py21cmsense.conversions.X2Y¶

py21cmsense.conversions.X2Y(z: float | ~numpy.array, cosmo: ~astropy.cosmology.flrw.base.FLRW = FlatLambdaCDM(name="Planck15", H0=67.74 km / (Mpc s), Om0=0.3075, Tcmb0=2.7255 K, Neff=3.046, m_nu=[0. 0. 0.06] eV, Ob0=0.0486), approximate=False) → Quantity[source]¶

Obtain the conversion factor between observing co-ordinates and cosmological volume.

Parameters:

z (float) – Redshift
cosmo (astropy.cosmology.FLRW instance) – A cosmology.

Returns:

astropy.Quantity (the conversion factor. Units are Mpc^3/h^3 / (sr MHz).)