py21cmsense.conversions

Common 21 cm conversions.

Provides conversions between observing co-ordinates and cosmological co-ordinates.

Functions

X2Y(z[, cosmo, Om0, Tcmb0, Neff, m_nu, Ob0])	Obtain the conversion factor between observing co-ordinates and cosmological volume.
dL_df(z[, cosmo, Om0, Tcmb0, Neff, m_nu, Ob0])	Return the factor to convert a bandwidth to a line-of-sight distance in Mpc/h at redshift z
dL_dth(z[, cosmo, Om0, Tcmb0, Neff, m_nu, Ob0])	Return the factor to convert radians to transverse distance at redshift z
dk_deta(z[, cosmo, Om0, Tcmb0, Neff, m_nu, Ob0])	Return factor to convert eta (FT of freq.; in 1/GHz) to line of sight k mode in h/Mpc at redshift z
dk_du(z[, cosmo, Om0, Tcmb0, Neff, m_nu, Ob0])	Return the factor to convert a baseline length in wavelengths (at the frequency corresponding to redshift z) into a transverse k mode in h/Mpc at redshift z
f2z(fq)	Convert frequency to redshift for 21 cm line.
z2f(z)	Convert redshift to z=0 frequency for 21 cm line.