Disputas: Lluis Mas Ribas

M. Sc. Lluis Mas Ribas ved Institutt for teoretisk astrofysikk vil forsvare sin avhandling for graden ph.d.: Extended Diffuse Emission as a Probe of Galaxy and Reionization Physics.

Se prøveforelesning


  • Professor, PhD Joop Schaye, Leiden Observatory, Leiden, The Netherlands (opponent)
  • Professor, PhD Johan Peter Uldall Fynbo, Dark Cosmology Center, Niels Bohr Institute, University of Copenhagen, Denmark (opponent)
  • Senior Researcher, PhD Håkon Dahle, Institute of Theoretical Astrophysics, University of Oslo (administrator)

Leder av disputas


Populærvitenskapelig sammendrag av avhandlingen

The dissertation presents innovative methodology for studying the key pillars of galaxy formation and evolution, and their impact on global processes such as the Cosmic Reionization, addressing some of the fundamental and long-standing questions in Extragalactic Astrophysics and Cosmology.

The modelling of the recently observable and likely ubiquitous diffuse halo emission that is linked to the properties of galaxies and its comparison to observations opens a unique window for probing the otherwise undetectable star formation in galactic halos, as well as the warm and hot gas in that region that may account for most  of the matter content in massive galaxies. The same formalism also enables to probe the existence of faint galaxies that are usually invoked to drive reionization and to constrain the impact of bright massive galaxies to this process, thus disentangling the role of these two populations in one of the major events in the early history of our Universe. 

Publisert 21. aug. 2018 09:19 - Sist endret 21. aug. 2018 10:54