From IAU: Division J Galaxies and Cosmology

IAU bloc

International Astronomical Union

Galaxy images from the GAMA survey. Credit: ICRAR/GAMA and ESO

Division J Galaxies and Cosmology

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 Div.H (“Interstellar Matter and Local Universe”). Also, some of the topics will be shared with Div.D (“High Energy Phenomena and Fundamental Physics”).

The main topics can be listed in four 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 gamma-rays);
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, role of the environment.
4.Spatially resolved galaxies
Star formation laws in galaxies, resolved stellar population;
Dynamics of sub-structures (bulges, disks, spiral structure…).

Division web page

See the full article here .

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The International Astronomical Union (IAU) was founded in 1919. Its mission is to promote and safeguard the science of astronomy in all its aspects through international cooperation. Its individual members — structured into Divisions, Commissions, and Working Groups — are professional astronomers from all over the world, at the Ph.D. level and beyond, who are active in professional research and education in astronomy. The IAU has 12422 members. The Individual Members Directory contains 10364 names in 97 countries worldwide (These Individual Members are labeled as “active” in the IAU database: they have a valid, public email, and are affiliated to at least one Division.). Of those 74 are National Members. In addition, the IAU collaborates with various scientific organizations all over the world.

The long-term policy of the IAU is defined by the General Assembly and implemented by the Executive Committee, while day-to-day operations are directed by the IAU Officers. The focal point of its activities is the IAU Secretariat, hosted by the Institut d’Astrophysique de Paris, France. The scientific and educational activities of the IAU are organized by its 9 Scientific Divisions and, through them, its 35 specialized Commissions covering the full spectrum of astronomy, along with its 32 Working Groups.

The key activity of the IAU is the organization of scientific meetings. Every year the IAU sponsors nine international IAU Symposia. The IAU Symposium Proceedings series is the flagship of the IAU publications. Every three years the IAU holds a General Assembly, which offers six IAU Symposia, some 25 Joint Discussions and Special Sessions, and individual business and scientific meetings of Divisions, Commissions, and Working Groups. The proceedings of Joint Discussions and Special Sessions are published in the Highlights of Astronomy series. The reports of the GA business meetings are published in the Transactions of the IAU – B series.