Past Commission G3 Stellar Evolution for 2018-2021

Parent Division: G

Stellar evolution is at the heart of astronomy and astrophysics. It is the link between both larger and smaller length-scales and larger and smaller mass-scales. Stars are fundamental to almost all astrophysics, be it the origin of interstellar grains, the most energetic events in the Universe, or the structure of galaxies themselves. No aspect of stars can be considered independent of the birth, death and evolution of the star. Clearly such a huge body of work and the innumerable implications and applications require a Commission rather than a smaller organizational structure. Indeed, in many respects “stellar evolution” can be considered to be the major component of Division G “Stars”.


The main goals of the Commission are:

• To promote both theoretical and observational studies of stars and stellar populations

• To stimulate the interaction between theorists and observers to direct efforts to

solving specific problems

• To elucidate and promote nucleosynthesis and nuclear physics processes in stars

• To understand the fundamental physics of stars that affects stellar evolution

• To unite and improve communication between researchers in various fields related to stellar evolution (eg atomic physics, seismology, hydrodynamics)


Specific topics include, but are not limited to:

• Stellar Models

• Input physics

• Nucleosynthesis

• Convection, Mixing and Hydrodynamical Processes in Stars, Mass Loss

• Relevant Numerical Techniques

• Binary Stellar Evolution, including novae, SNIa, XRB, GRB etc

• Final Stages of Stellar Evolution (SNe, WDs, Post-AGB, PN etc)

• Abundance Determination

• Asteroseismology

• Stellar Populations (synthesis and observation)


Work plan for the next tri-ennium:

• development of multi-dimensional hydrodynamical simulations and application to stellar models and evolution

• high precision solar and stellar models

• detailed nucleosynthesis

• applications of stellar seismology to determining the interior structure and evolution of stars across the HR diagram (as well as the Sun)


Note: Malpractice (or good practice) in the astronomical community can be reported anonymously to the IAU Division G Ombud.


Jacco Th. van Loon

back to past Commissions list

Past Trienniums


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 2023 n° 5

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