Past affiliation(s) within the IAU

• Past President of Commission 36 Theory of Stellar Atmospheres (1988-1991)
• Past Vice-President of Commission 36 Theory of Stellar Atmospheres (1985-1988)
• Past Organizing Committee Member of Commission 29 Stellar Spectra (1997-2000)
• Past Organizing Committee Member of Commission 29 Stellar Spectra (1994-1997)
• Past Organizing Committee Member of Commission 36 Theory of Stellar Atmospheres (1991-1994)
• Past Organizing Committee Member of Commission 36 Theory of Stellar Atmospheres (1982-1985)
• Past Member of Division A Fundamental Astronomy (until 2022)
• Past Member of Division G Stars and Stellar Physics (until 2022)
• Past Member of Commission G1 Binary and Multiple Star Systems (2015-2022)
• Past Member of Commission G4 Pulsating Stars (2015-2022)
• Past Member of Commission G5 Stellar and Planetary Atmospheres (2015-2022)
• Past Member of Commission 29 Stellar Spectra (until 2015)
• Past Member of Commission 30 Radial Velocities (until 2015)
• Past Member of Commission 36 Theory of Stellar Atmospheres (until 2015)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division IX Optical & Infrared Techniques (until 2012)

Areas of interest

1 - General: 1.11 - Standards
2 - Physical data and processes: 2.17 - Lines, 2.28 - Radiative transfer
3 - Astronomical instrumentation, methods and techniques: 3.3 - Instrumentation
6 - The Sun: 6.2 - Sun: activity, 6.13 - Sun: granulation, 6.21 - Sun: photosphere, 6.23 - Sun: rotation
8 - Stars: 8.2 - Stars: atmospheres, 8.4 - Stars: binaries, 8.12 - Stars: fundamental parameters, 8.20 - Stars: late-type, 8.33 - Stars: rotation
10 - The Galaxy: 10.15 - Galaxy: open clusters and associations