Astronomy Colloquium - Morgan Macleod
- Morgan Macleod
- Institute for Advanced Study
It is becoming an observational reality to catch common envelope events – where one star in a binary evolves to engulf its companion – in action with time domain surveys. These data are beginning to constrain long-standing theoretical uncertainties surrounding mass ejection in common envelope phases and their role in transforming binary star systems. I will discuss recent surprises and efforts at understanding these events through hydrodynamic simulations.