oceanus: Populations of stellar streams in deforming MW--LMC systems - I

We publish oceanus, the t = 0 Gyr simulation snapshots of all 16,384 streams in each MW--LMC potential used in Brooks, R. A. N et al. (2024). The first part of the archived data includes:

• rigid-mw-woutmotion-nolmc.hdf5 - dataset for the stream population generated in the "Rigid MW without motion (no LMC)" potential.
• rigid-mw-wmotion-nolmc.hdf5 - dataset for the stream population generated in the "Rigid MW + motion (no LMC)" potential.
• rigidmono-wlmc.hdf5 - dataset for the stream population generated in the "Rigid Monopole & LMC" potential.
• evolmono-wlmc.hdf5 - dataset for the stream population generated in the "Evolving Monopole & LMC" potential.

Each stream contains 20,000 particles with 3-D Galactocentric positions and velocities, plus progenitor information on its initial conditions, mass and scale radius. We do not include summary statistic values. The functions to calculate stream summary statistics will be shared upon reasonable request. This dataset can be used to explore the effect of the LMC and the MW halo response on MW streams.

The basis function expansion MW--LMC potentials can be found and installed using instruction at: https://github.com/sophialilleengen/mwlmc.