DIVISIONS
The 9 scientific Divisions are the soul of the Union. They represent the grass roots efforts of the Union and encompass every branch of the astronomical endeavour. Divisions may have Commissions, and Divisions and Commissions may have Working Groups.
Division A: Fundamental Astronomy
Division B: Facilities, Technologies and Data Science
Division C: Education, Outreach and Heritage
Division D: High Energy Phenomena and Fundamental Physics
Division E: Sun and Heliosphere
Division F: Planetary System and Astrobiology
Division G: Stars and Stellar Physics
Division H: Interstellar Matter and Local Universe
Division J: Galaxies and Cosmology
The following provides the Division leadership as well as the Commissions and Working Groups.
1. Division A - Fundamental Astronomy
This Division has one inter-division and one cross-division Commissions, and two inter-divisional Working Groups.
President: Daniel Hestroffer
Vice-President: Norbert Zacharias
Its steering committee is composed by the following members of the Union:
Elisa Arias
Alessandra Celletti (Commission A4 President)
William Folkner (Commission X2 President)
Ralph Gaume
James Hilton (Commission A3 President)
Anne Lemaitre
Andrzej Maciejewski
Benot Noyelles (Secretary)
Fernando Roig
Florian Seitz (Commission A2 President)
Jean Souchay (Commission A1 President)
Bonnie Steves
Commissions
A1 Astrometry
A2 Rotation of the Earth
A3 Fundamental Standards
A-F Celestial Mechanics and Dynamical Astronomy
A-F Solar System Ephemerides
Working Groups
Astrometry by Small Ground-Based Telescopes
Multi-waveband International Celestial Reference Frame (optical+VLBI)
Time Metrology Standards
A-F Cartographic Coordinates & Rotational Elements
A-F Near Earth Objects
2. Division B - Facilities, Technologies and Data Science
This Division has two inter-division Commissions, and one inter-divisional Working Group.
President: Michael Burton
Vice-President: Gabriele Giovannini
Its steering committee is composed by the following members of the Union:
Anthony Beasley (Commission B4 President)
Dmitrij Bisikalo (Commission B1 President)
Helen Fraser (Commission B5 President)
Ana Gomez de Castro
Antonio Mario Magalhaes (Commission B6 President)
Anja Schroeder (Commission B2 President)
Prajval Shastri (Commission B3 President)
Wenwu TIAN
Pietro Ubertini (Advisor)
Jan van der Hulst
Constance Walker (Commission B7 President)
Yongtian ZHU
Commissions
B1 Computational Astrophysics
B2 Data and Documentation
B3 Astroinformatics and Astrostatistics
B4 Radio Astronomy
B5 Laboratory Astrophysics
B6 Astronomical Photometry and Polarimetry
B7 Protection of Existing and Potential Observatory Sites
Working Groups
Time Domain Astronomy
UV Astronomy
Virtual Observatory
B-E Coordination of Synoptic Observations of the Sun
3. Division C - Education, Outreach and Heritage
This Division has one inter-division Commission, and one inter-divisional Working Group.
President: Susana Deustua
Vice-President: Richard de Grijs
Its steering committee is composed by the following members of the Union:
Paulo Bretones (Commission C1 President)
Richard Fienberg (Commission C2 President)
Pamela Gay
R. Elizabeth Griffin
Saeko HAYASHI (Secretary)
Mary Hemenway (Advisor)
Katrien Kolenberg
Wayne Orchiston
Mirjana Povic
José M. Rodriguez Espinosa
Gudrun Wolfschmidt (Commission C4 President)
Commissions
C1 Astronomy Education and Development
C2 Communicating Astronomy with the Public
C3 History of Astronomy
C4 World Heritage and Astronomy
Working Groups
Key Initiatives in Education, Outreach and Development
Star Names
C, E Solar Eclipses
4. Division D - High Energy Phenomena and Fundamental Physics
This Division has one cross- and one inter-divisional Commissions.
President: Elena Pian
Vice-President: Isabelle Grenier
Its steering committee is composed by the following members of the Union:
Aya BAMBA
Matthew Baring
Dipankar Bhattacharya
Marica Branchesi (Commission D1 President)
Tadayasu DOTANI
Christine Jones (Commission X1 President)
Chryssa Kouveliotou (Advisor)
Anna Watts mittee Member (Secretary)
Silvia Zane
Commissions
D1 Gravitational Wave Astrophysics
D-J Supermassive Black Holes, Feedback and Galaxy Evolution
D-G-H-J Galaxy Spectral Energy Distributions
Working Groups
Supernovae
5. Division E - Sun and Heliosphere
This Division has one inter-division Commission, and two inter-divisional Working Groups.
President: Sarah Gibson
Vice-President: Cristina Mandrini
Its steering committee is composed by the following members of the Union:
Timothy Bastian
Paul Cally (Commission E2 President)
Mingde DING (Secretary)
Irina Kitiashvili
Eduard Kontar
Alexander Kosovichev (Commission E1 President)
Toshifumi SHIMIZU
Nandita Srivastava
Nicole Vilmer (Commission E3 President)
Yihua YAN (Advisor)
Commissions
E1 Solar Radiation and Structure
E2 Solar Activity
E3 Solar Impact Throughout the Heliosphere
E-F-G Impact of Magnetic Activity on Solar and Stellar Environments
Working Groups
B-E Coordination of Synoptic Observations of the Sun
C-E Solar Eclipses
6. Division F - Planetary System and Astrobiology
This Division has one cross- and one inter-divisional Commissions and two inter-divisional Working Groups.
President: Gonzalo Tancredi
Vice-President: Maria Barucci
Its steering committee is composed by the following members of the Union:
Athena Coustenis
Hans Deeg
Sylvio Ferraz-Mello
Nader Haghighipour Advisor
Kevin Heng
Diego Janches (Commission F1 President)
Jack Lissauer (Commission F2 President)
Masatoshi OHISHI (Commission F3 President)
Jean Schneider
Giovanni Valsecchi (Commission X2 Vice-President)
Dimitri Veras
Commissions
F1 Meteors, Meteorites and Interplanetary Dust
F2 Exoplanets and the Solar system
F3 Astrobiology
F4 Asteroids, Comets & Transneptunian Objects
E-F-G Impact of Magnetic Activity on Solar and Stellar Environments
A-F Solar System Ephemerides
Working Groups
A-F Cartographic Coordinates & Rotational Elements
A-F Near Earth Objects
7. Division G - Planetary System and Astrobiology
This Division has four inter-divisional Commissions and three Working Groups.
President: David Soderblom
Vice-President: Andrej Prsa
Its steering committee is composed by the following members of the Union:
Carlos Allende Prieto (Commission G5 President)
Tabetha Boyajian (Secretary)
Merieme Chadid
Corinne Charbonnel (Advisor)
Pierre Kervella
Heidi Korhonen
Jaymie Matthews (Commission G4 President)
Geraldine Peters
Marc Pinsonneault (Commission G3 President)
Virginia Trimble (Commission G1 President)
Jorick Vink (Commission G2 President)
Commissions
G1 Binary and Multiple Star Systems
G2 Massive Stars
G3 Stellar Evolution
G4 Pulsating Stars
G5 Stellar and Planetary Atmospheres
E-F-G Impact of Magnetic Activity on Solar and Stellar Environments
Working Groups
Active B Stars
Ap & Related Stars
Red Giants & Supergiants
8. Division H - Interstellar Matter and Local Universe
This Division has four inter-divisional Commissions one Working Group.
President: Leonardo Testi
Vice-President: Monica Rubio
Its steering committee is composed by the following members of the Union:
Pauline Barmby
Edwin Bergin (Commission H2 President)
Cristina Chiappini
Edvige Corbelli
Bruce Elmegreen (Advisor)
Amanda Karakas (Commission H4 President)
Francisca Kemper
Dante Minniti (Commission H1 President)
Eva Schinnerer
Laszlo Toth
Albert Zijlstra (Commission H3 President)
Commissions
H1 The Local Universe
H2 Astrochemistry
G-H Planetary Nebulae
G-H-J Stellar Clusters throughout Cosmic Space and Time
D-G-H-J Galaxy Spectral Energy Distributions
B-H-J Intergalactic Medium
Working Groups
The Galactic Center
9. Division J - Galaxies and Cosmology
This Division has one cross- and three inter-divisional Commissions.
President: Denis Burgarella
Vice-President: Kim-Vy Tran
Its steering committee is composed by the following members of the Union:
Gustavo Bruzual
Elisabete da Cunha
Valentina D’Odorico (Commission J2 President)
Leslie Hunt
Christine Jones (Commission X1 President)
Johan Knapen
Claus Leitherer (Advisor)
Jeremy Mould
Cristina Popescu (Commission J1 President)
Aida Wofford
Commissions
J3 Galaxies at the Epoch of Reionisation
D-J Supermassive Black Holes, Feedback and Galaxy Evolution
G-H-J Stellar Clusters throughout Cosmic Space and Time
D-G-H-J Galaxy Spectral Energy Distributions
B-H-J Intergalactic Medium
10. Executive Committee Working Groups
Astronomy for Equity and Inclusion
Dark and Quiet Sky Protection
Exoplanetary System Nomenclature (Functional)
Global Coordination of Ground and Space Astrophysics
Junior Members
Planetary System Nomenclature (WGPSN) (Functional)
Professional-Amateur Relations in Astronomy
Small Bodies Nomenclature (SBN) (Functional)
Women in Astronomy
11. Commission Working Groups
Consistent Realization of TRF, CRF and EOP (CRTCE) Commission A2
Improving Theories and Models of the Earth?s Rotation (ITMER) Commission A2
Designations & Nomenclature Commission B2 (Functional)
FITS Commission B2 (Functional)
Preservation and Digitization of Photographic Plates Commission B2 (Functional)
Global VLBI Alliance Commission B4
Spectroscopic and Radiative Data for Molecules Commission B5
Astronomy from the Moon Commission B7
Site Protection Commission B7
Astronomy Competitions for Secondary School Students Commission C1
Astronomy Education Research & Methods Commission C1
CAP Conferences Commission C2 (Functional)
Communicating Climate Change Through Astronomy Commission C2
Astronomical Heritage in Danger Commission C4
Windows to the Universe: Classical and Modern Observatories Commission C4
Meteor Shower Nomenclature (MSN-WG) Commission F1
12. Inter-Commission Working Groups
Laboratory Astrophysics Data Compilation, Validation and Standardization: from the Laboratory to FAIR Usage in the Astronomical Community Commission B2, Commission B5
Historical Radio Astronomy (Inter-Union IAU-URSI) Commission B4, Commission C3 (Functional)
Astronomy in Culture (WGAC) Commission C1, Commission C2, Commission C3, Commission C4
Ethnoastronomy and Intangible Astronomical Heritage Commission C1, Commission C3, Commission C4
