Franz-Ludwig Deubner

2 June 1934 – 21 October 2017

Prof. Dr. Franz-Ludwig Deubner passed away on 21 October 2017 in Freiburg, Germany. His accomplishments and many contributions to the field of solar physics are well remembered. He was a member of the Editorial Board of Solar Physics (1976–1991) and President of IAU Commission 12 Solar Radiation & Structure. Probably his most profound contribution to the field of solar physics was his seminal 1975 article in which he demonstrated that the five-minute oscillations are low wavenumber nonradial eigenmodes of the Sun. This paper marks the beginning of helioseismology. A more extended recollection of his life and work will appear in Solar Physics.

[via Bernhard Fleck in SolarNews 2017: 21]