University of Minnesota
School of Physics & Astronomy


Alexander Heger


I study the life and explosive death of massive stars and the origin of the elements, and am generally interested in nuclear astrophysics.I study massive and very massive stars (10-1000 solar masses); the first generations of stars in the universe (Pop III stars); evolution of rotating massive stars and the spin of their remnants; mixing and transport processes in the stellar interior;

nucleosynthesis and the origin of elements, including galacto-chemical evolution - which elements are made where and when; supernovae (mechanisms and nucleosynthesis); gamma-ray bursts (collapsars and similar models) and their progenitors; modeling of Type I X-ray bursts and superbursts (thermocuclear explosions on the surface of neutron stars). "I blow up stars for a living."