Fredagskollokvium: Galaxy clusters: a tools for cosmology

Matteo Maturi, Heidelberg University, Institute for Theoretical Astrophysics

Matteo Maturi, Heidelberg University, Institute for Theoretical Astrophysics.

Galaxy clusters are one of the main probes to investigate the nature of dark matter and provide us with precious insights into the nature of dark energy and of our universe in general. In this talk I will explain how these objects form through the cosmic time, how they can be found in our data, how we map their matter content (booth visible and invisible) through weak- and strong-gravitational lensing, and finally how we use them to constrain the properties of the universe.

 

 

 

 

Left image: one of the galaxy cluster detected in the Kilo Degrees Survey (KiDS). Credits: Maturi et al. (2019). Right image: simulation of a galaxy cluster lensing far background galaxies. Credits: Plazas, Meneghetti, Maturi, Rhodes (2019).

 

Publisert 24. apr. 2019 08:42 - Sist endret 16. sep. 2019 15:07