Speaker
Nicola Principi Cavaterra
(Narodowe Centrum Badań Jądrowych (NCBJ))
Description
Measuring the expansion rate of the Universe is a central challenge in cosmology, particularly due to the persistent Hubble tension.
The cosmic chronometer (CC) approach is a promising method for probing the expansion history of the Universe independently from the underlying cosmological model. However, CC measurements are still affected by several systematic uncertainties.
In this brief talk, I will discuss how restricting the analysis to relic galaxies minimizes the systematics.
Author
Nicola Principi Cavaterra
(Narodowe Centrum Badań Jądrowych (NCBJ))