Fredagskollokvium: Cosmology and formation of structures

Clement Stahl, Pontificia Universidad Católica de Valparaíso, Chile

Clement Stahl, Pontificia Universidad Católica de Valparaíso, Chile.

I will discuss about our current cosmological model with a bird's eye view. I will introduce some of the basic observational pillars of the paradigm: an expanding universe, primordial nucleosynthesis and the cosmic microwave background which is the first “picture” of our universe, when it was 380 000 years old.

Then, I will describe how structures such as galaxies and clusters of galaxies could form. I will eventually briefly discuss my own humble contribution to the field.


These towering tendrils of cosmic dust and gas sit at the heart of M16, or the Eagle Nebula. The aptly named Pillars of Creation, featured in this stunning Hubble image, are part of an active star-forming region within the nebula and hide newborn stars in their wispy columns. Credits: NASA, ESA and the Hubble Heritage Team (STScI/AURA).


Publisert 10. des. 2019 11:31 - Sist endret 15. jan. 2020 10:41