Massive stars are the cosmic engines which drive the evolution of galaxies throughout the history of the universe. This project will undertake a detailed investigation of the effects of stellar winds, ionising radiation, and the final stellar explosions on the interstellar medium. Building on our experience in simultaneously modelling the evolution of static rotating massive stars and their circumstellar medium, we will for the first time advance such studies to the more realistic situations of moving stars, and high pressure and inhomogeneous external media.
In a second step, we will initiate supernova explosions into these
pre-calculated environments whose properties emerge from the
corresponding pre-supernova evolution. We will then calculate the
observable and dynamical consequences of interactions of supernovae with
their surrounding medium for the most frequent realistic situations.
Our models will be compared to observations of runaway star bow shocks
and wakes, nebulae around massive stars within stellar clusters, sizes
and shapes of wind-driven shells in different environments, and
supernovae and supernova remnants.
They will quantify the energy, momentum, ionising photon luminosity, and
chemical elements delivered by massive stars, which are essential
ingredients for understanding the evolution of the interstellar medium.