The Division J is part of the new structures
of the IAU, launched in August 2012, at the Beijing XXVIII GA.
It follows the previous Division VIII "Galaxies and the Universe".
Division J covers all thematics dealing with the physics of the Universe, and the physics of galaxies composing it, but not in particular the Milky Way, which is relevant to Division H Interstellar Matter and Local Universe. The main topics can be listed in 4 categories:
- 1- Physics and content of the Universe
The early Universe, cosmological models
Baryonic and non-baryonic matter, dark matter and dark energy
- 2- Evolution of structures
Cosmic backgrounds (CMB, and all backgrounds from radio to X-ray)
Populations of galaxies, galaxy clusters and groups, intergalactic medium
- 3- Formation and evolution of galaxies
Reionization, first objects (AGN, Starbursts)
History of star formation
Physics of galaxies at all redshifts, rôle of environnement
- 4- Spatially resolved galaxies
Star formation laws in galaxies, resolved stellar populations,
Dynamics of sub-structures (bulges, disks, spiral structure..)
Division J hosts now 3 Commissions:
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