|
Speaker |
Salas, Luis |
|
Coauthors |
Salas, Luis |
| Talk Title |
On the use of redshift as a time parameter in the FLRW metric |
|
Abstract |
I comment on the different choices of time parameter that are employed to calculate proper co-moving distance in the FLWR metric. I argue that redshift is used by more authors in recent years due to a series of advantages from the observational point of view. I therefore present the geometric Alcock-Paczyński (1979) test, that has recently been used as a probe for cosmology, in the same terms and note the simplicity and symmetry of the expression. I also present the FLRW metric in terms of the redshift and the Hubble function, and show how the later replaces the need for a scaling function. |
|
Talk view |
|
|
|
|