Extracting galaxy merger timescales I: Tracking haloes with WhereWolf and spinning orbits with OrbWeaver

  title={Extracting galaxy merger timescales I: Tracking haloes with WhereWolf and spinning orbits with OrbWeaver},
  author={Rhys J. J. Poulton and Chris Power and Aaron S. G. Robotham and Pascal J. Elahi},
  journal={Monthly Notices of the Royal Astronomical Society},
Hierarchical models of structure formation predict that dark matter halo assembly histories are characterised by episodic mergers and interactions with other haloes. An accurate description of this process will provide insights into the dynamical evolution of haloes and the galaxies that reside in them. Using large cosmological N-body simulations, we characterise halo orbits to study the interactions between substructure haloes and their hosts, and how different evolutionary histories map to… 

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