Complete background calculations

LSSTDESC / CCL

DESC Core Cosmology Library: cosmology routines with validated numerical accuracy

BSD 3-Clause "New" or "Revised" License

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Complete background calculations #1066

Closed nikfilippas closed 5 days ago

nikfilippas commented 1 year ago

This PR adds the following background functions:

hubble_distance(cosmo, a)
comoving_volume_element(cosmo, a)
comoving_volume(cosmo, a, *, solid_angle=4*pi)
lookback_time(cosmo, a)
age_of_universe(cosmo, a)

and with that closes #954 and closes #408 and now CCL will be able to calculate every distance quantity described in Hogg's reference manual .

damonge commented 1 year ago

This is not to be reviewed until current functionality has been put in v3 form. There are several other new science implementations that take priority.

damonge commented 5 days ago

Just doing some general cleaning of the repo. This PR is very much behind the current master, so I will close it. The code within the branch could be valuable though, so I will not delete it, and we can reopen the PR if necessary.