Current Fields of Work:
massive stars
the first stars
stellar rotation
nucleosynthesis
supernovae
gamma-ray bursts
x-ray bursts

Research interests
Life and explosive death of massive stars

The origin of the elements

Nuclear astrophysics

Current work comprises the study of massive to supermassive stars (10-100,000 solar masses); the first generations of stars in the universe (Pop III stars); evolution of rotating massive stars and the spin of their remnants (including predictions for GW sources); 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 (thermonuclear explosions on the surface of neutron stars); stellar rotation of misaligned systems (internal rotation evolution, binary and mutile stars dynamics and interaction).