def dage(self):
"""
Return the dimensionless age of the universe for the
current cosmology (in units of 1/H_0).
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.dage()
def dage(self):
"""
Return the dimensionless age of the universe for the
current cosmology (in units of 1/H_0).
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.dage()
def dlbt(self, z):
"""
Return the dimensionless look-back time to redshift z
(in units of 1/H_0).
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.dlbt_z(z)
def dlbt(self, z):
"""
Return the dimensionless look-back time to redshift z
(in units of 1/H_0).
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.dlbt_z(z)
def ldist(self, z):
"""
Return the luminosity distance to redshift z, in Mpc.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
try:
len(z)
ldvals = _cosmo.nldist(z)
return ldvals / 1.e5
except TypeError:
return _cosmo.ldist(z) / 1.e5
def ldist(self, z):
"""
Return the luminosity distance to redshift z, in Mpc.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
try:
len(z)
ldvals = _cosmo.nldist(z)
return ldvals / 1.e5
except TypeError:
return _cosmo.ldist(z) / 1.e5
def mu(self, z):
"""
Return the distance modulus to redshift z.
This will work for a vector of z values, as well as a scalar.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
try:
len(z)
ldvals = _cosmo.nldist(z)
return 5*log10(ldvals)
except TypeError:
return _cosmo.mu_z(z)
def mu(self, z):
"""
Return the distance modulus to redshift z.
This will work for a vector of z values, as well as a scalar.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
try:
len(z)
ldvals = _cosmo.nldist(z)
return 5 * log10(ldvals)
except TypeError:
return _cosmo.mu_z(z)
def vol_elem(self, z):
"""
Return the volume per unit redshift per unit steradian.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.vol_elem(z)
def vol_elem(self, z):
"""
Return the volume per unit redshift per unit steradian.
"""
_cosmo.set_frw_cosmo(self.h, self.O_m, self.O_lambda)
return _cosmo.vol_elem(z)
