Massive runaways as probes for stellar physics and dynamics

Most massive stars are born in cluster and typically have a binary companion. Both dynamical N-body interactions and/or the explosion of the companion can accelerate massive stars to large spatial velocities, making them runaway stars. I will discuss these two class of processes and their implications for stellar physics and core-collapse SNe, cluster dynamics, gravitational waves astronomy, and feedback processes in the universe. In particular, I will show results about >100Msun stars ejected from the cluster R136, and what we can learn about the earliest evolution of the cluster and star formation processes from them. I will also present the typical evolutionary path of binaries disrupted by the first supernova and how they might be used to constrain binary evolution processes and supernova natal kicks for neutron stars and black holes.

Mathieu Renzo (University of Amsterdam)
KIAA, 1st meeting room
Tue, 2018-07-03 12:00 to 13:00