Stellar Astrophysics - a Tribute to Helmut A. Abt

This proceedings collects fifty-two papers contributed by over one hundred authors/co-authors working in the field of stellar physics research. The contributions to this proceedings are categorized according to the expertise of the participants into the following six groups: Compact Stars and High Energy Astrophysics, Binary Star Systems, Stars, Variable Stars and Cataclysmic Variables, and Galactic Astronomy. The volume contains many updated reviews in these research areas.