Constraining the $\Lambda$CDM and Galileon models with recent cosmological data

Understand

The Galileon theory belongs to the class of modified gravity models that can explain the late-time accelerated expansion of the Universe.

• In previous works, cosmological constraints on the Galileon model were derived, both in the uncoupled case and with a disformal coupling of the Galileon field to matter.
• There, we showed that these models agree with the most recent cosmological data.
• In this work, we used updated cosmological data sets to derive new constraints on Galileon models, including the case of a constant conformal Galileon coupling to matter.