Division J Galaxies and Cosmology


Division J focuses on the physics of the Universe and galaxies beyond our Milky Way using theory, simulations, and panchromatic observations. Div J connects across many of the other Divisions and has strong overlap with Div B, Div D, Div G and Div H.

The main themes of Division J include:

  1. Physics and content of the Universe
    The early Universe, cosmological models;
    Baryonic and non-baryonic matter, dark matter and dark energy, origin of gravitational waves
  2. Evolution of structures
    Cosmic backgrounds (CMB, and all backgrounds from radio to gamma-rays);
    Populations of galaxies, galaxy clusters and groups, intergalactic medium, cosmic web
  3. Formation and evolution of galaxies
    Reionization, first objects;
    AGN, starbursts, massive galaxies;
    History of star formation;
    Physics of galaxies at all redshifts, role of the environment.
  4. Spatially resolved galaxies
    Star formation in galaxies, stellar populations;
    Circumgalactic medium; galactic sub-structure
  5. Science and Data Analysis Methods for extra-galactic and cosmological surveys
    Large-scale visualization of galaxies/simulations;
    Data mining, deep and machine learning algorithms

Division Web Page

Division Members

  • Total number of active members: 3986
  • Number of junior members: 391

Participating Commissions

Inter-Division G-H-J Commission Stellar Clusters
Inter-Division D-G-H-J Commission Galaxy Spectral Energy Distributions
Inter-Division B-H-J Commission Intergalactic Medium
Commission J3 Galaxies at the Epoch of Reionisation
Cross-Division D-J Commission Supermassive Black Holes, Feedback and Galaxy Evolution

Kim-Vy Tran

University of New South Wales
School of Physics
Sydney 2052
New South Wales (NSW)

Personal website: https://www.kimvytran.org

NCA adherence: Australia

Last updated:
November 20, 2023

Cristina Carmen Popescu

University of Central Lancashire
Jeremiah Horrocks Institute
United Kingdom

Phone: +44 1772893551
Organization website: http://www.star.uclan.ac.uk

NCA adherence: United Kingdom

Last updated:
November 20, 2023

Lucia Marchetti

University of Cape Town
Department of Astronomy
Private Bag X3
7701 Cape Town, RSA
South Africa

Phone: +27 0713905116
Organization website: http://www.ast.uct.ac.za/ast/staff/lucia-marchetti

NCA adherence: South Africa

Last updated:
November 20, 2023

Denis Burgarella

Aix-Marseille University
Laboratoire d’Astrophysique de Marseille
Technopole de Chateau-Gombert
38, rue Joliot-Curie
13388 Marseille Cedex 13

Phone: +33 4 91 05 69 71
Personal website: https://people.lam.fr/burgarella.denis/
Organization website: http://www.lam.fr/

NCA adherence: France

Last updated:
November 20, 2023

Steering Committee

Search Scientific Bodies


Donate to the IAU

Donate to the IAU

General Assembly 2024

IAU General Assembly 2024

IAU Strategic Plan 2020–2030

Strategic Plan

IAU Code of Conduct

Code of Conduct

Symposia and Meetings



How to Become a Member

Deceased Members

Deceased Members

Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference


IAU Catalyst

Latest Catalyst

IAU e-Newsletter
Volume 2024 n° 1

Latest e-Newsletter

Subscribe to the e-Newsletter


IAU Office of Astronomy for Development

Office for Astronomy Development

IAU Office for Young Astronomers

Office for Young Astronomers

IAU Office for Astronomy Outreach

Office for Astronomy Outreach

IAU Office of Astronomy for Education

Office of Astronomy for Education

International School for Young Astronomers

International School for Young Astronomers

WG Small Bodies Nomenclature Bulletins

WG Small Bodies Nomenclature Bulletins

IAU WG Women in Astronomy Newsletters and Ensemble Magazine

WG Women in Astronomy Newsletters