Orateur
Jean-Baptiste Billand
(CEA-SACLAY)
Description
The James Webb Space Telescope (JWST) has discovered a very surprising type of galaxy, a large population of compact red objects known as Little Red Dots (LRDs). To this day, this population remains misunderstood because of two opposing explanations: either they can be compact dusty star forming galaxies or Active Galactic Nucleus (AGNs). In both cases, the physics involved is very extreme, reaching the limit of our understanding of structure formation and super massive black holes seeds. This population also raises another puzzling question: where are they at low redshift? Indeed, they are typically observed at high redshift with 4
| Astrophysics Field | Galaxy formation & evolution |
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Auteur
Jean-Baptiste Billand
(CEA-SACLAY)
