My name is David Hendriks, and I’m have recently finished my PhD in Astrophysics at the university of Surrey. During my PhD I studied binary-star interactions and how accretion disks outflows affect their orbital evolution, as well as which of these binary star systems evolve in to binary black hole systems that merge through gravitational wave emission. I make use of ballistic orbit-integration codes to study the behaviour of particles in a gravitational potential, binary population-synthesis to evolve large populations of binary stars (using the package that I wrote called binary_c-python), as well as detailed accretion disk evolution codes to study the behaviour of accretion disks in detail.