Modeling the gravitational potential of a cosmological dark matter halo with stellar streams

  title={Modeling the gravitational potential of a cosmological dark matter halo with stellar streams},
  author={Robyn E. Sanderson and Johanna Hartke and Amina Helmi},
  journal={arXiv: Astrophysics of Galaxies},
Stellar streams result from the tidal disruption of satellites and star clusters as they orbit a host galaxy, and can be very sensitive probes of the gravitational potential of the host system. We select and study narrow stellar streams formed in a Milky-Way-like dark matter halo of the Aquarius suite of cosmological simulations, to determine if these streams can be used to constrain the present day characteristic parameters of the halo's gravitational potential. We find that orbits integrated… Expand

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