uvex_transients.utils.cosmology.redshift_to_age#

uvex_transients.utils.cosmology.redshift_to_age(z: float | NDArray[float64], cosmology: Cosmology | None = None) → Quantity[source]#

Compute the age of the universe at a given redshift.

Parameters:

z (float or array-like) – Cosmological redshift.
cosmology (~astropy.cosmology.FLRW, optional) – Cosmology used to evaluate the relation between redshift and cosmic age. If None, the configured default cosmology is used.

Returns:

Age of the universe at redshift z with units of time.

Return type:

~astropy.units.Quantity

Notes

This is equivalent to calling

cosmology.age(z)

from the Astropy cosmology API.

Examples

>>> redshift_to_age(1.0)
<Quantity 5.8513433 Gyr>