Satellite galaxies as better tracers of the Milky Way halo mass

@article{Han2019SatelliteGA,
  title={Satellite galaxies as better tracers of the Milky Way halo mass},
  author={Jiaxin Han and Wenting Wang and Zhaozhou Li},
  journal={Proceedings of the International Astronomical Union},
  year={2019},
  volume={14},
  pages={109 - 112}
}
Abstract The inference of the Milky Way halo mass requires modelling the phase space structure of dynamical tracers, with different tracers following different models and having different levels of sensitivity to the halo mass. For steady-state models, deviations from steady-state in the tracer distribution lead to an irreducible stochastic bias. This bias is small for satellite galaxies and dark matter particles, but as large as a factor of 2 for halo stars. This is consistent with the picture… Expand
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