부산대학교 도서관

Cornelis ("Kees") de Jager, co-founder of "Solar Physics", passed away in 2021. He was an exemplary human being, a great scientist, and had large impact on our field. In this tribute we first briefly summarize his life and career and then describe some of his solar activities, from his PhD thesis on the hydrogen lines in 1952 to the book on cycle-climate relations completed in 2020.
Comment: Compliant with publisher stipulations the ArXiv version is the initial manuscript submitted in July 2021. It does not reflect changes made by the journal editor and publisher. Its posting waited on the required publication DOI