Division G Stars and Stellar Physics


Division G is committed to fostering research on stars and stellar physics, as well as providing a forum for exchange of ideas and the distribution of key stellar data and model predictions to the research community on astrophysics. The activity of Division G is focused on the understanding of the properties of stars of all masses and evolutionary stages and the physical mechanisms that govern them. This covers a broad range of aspects, including the determination of stellar observable properties and their time variability with all possible observational techniques, the investigation of their atmospheric and internal constitution, the theoretical modeling of stellar formation, structure, and evolution, the techniques used to measure and classify stars such as spectroscopy, radial velocities and photometry, and the production of stellar predictions (e.g. stellar evolution tracks, lifetimes, chemical yields, star-planet interactions, etc) requested by the astronomical community at large. Division G is also concerned with stellar binarity and multiplicity, from close to wide systems.

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

Division Web Page

Division Members

  • Total number of active members: 3876
  • Number of junior members: 401

Participating Commissions

Inter-Division E-F-G Commission Impact of Magnetic Activity on Solar and Stellar Environments
Commission G1 Binary and Multiple Star Systems
Commission G2 Massive Stars
Commission G3 Stellar Evolution
Commission G4 Pulsating Stars
Commission G5 Stellar and Planetary Atmospheres
Inter-Division G-H Commission Planetary Nebulae
Inter-Division G-H-J Commission Stellar Clusters
Inter-Division D-G-H-J Commission Galaxy Spectral Energy Distributions

Division Working Groups

Division G WG Active B Stars
Division G WG Ap & Related Stars
Division G WG Red Giants and Supergiants

Andrej Prsa

Villanova University
Dept. of Astrophysics and Planetary Science
800 E Lancaster Ave
Villanova 19085
Pennsylvania (PA)
United States

Phone: +1 610-519-4822
Organization website: http://www.villanova.edu

NCA adherence: United States

Last updated:
November 20, 2023

Merieme Chadid

University of Côte d’Azur
Nice University
Bd de l'Observatoire CS 34229
06304 Nice

Phone: +33 0630372491

NCA adherence: France

Last updated:
November 20, 2023

Chris Sneden

University of Texas Austin
Astronomy Dept
1 University Station C1400
Austin TX 78712
Texas (TX)
United States

Phone: +1 512 471 1349
Personal website: http://verdi.as.utexas.edu
Organization website: http://www.as.utexas.edu/

NCA adherence: United States

Last updated:
January 24, 2024

David R. Soderblom

Space Telescope Science Institute
3700 San Martin Dr
Baltimore MD 21218-2410
Maryland (MD)
United States

Phone: +1 410 338 4543
Organization website: http://www.stsci.edu

NCA adherence: United States

Last updated:
November 20, 2023

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