A COMPLETE SPECTROSCOPIC SURVEY OF THE MILKY WAY SATELLITE S EGUE 1: DARK MATTER CONTENT, STELLAR MEMBERSHIP AND BINARY PROPERTIES FROM A BAYESIAN AN ALYSIS

@article{Martinez2010ACS,
  title={A COMPLETE SPECTROSCOPIC SURVEY OF THE MILKY WAY SATELLITE S EGUE 1: DARK MATTER CONTENT, STELLAR MEMBERSHIP AND BINARY PROPERTIES FROM A BAYESIAN AN ALYSIS},
  author={G. Martinez and Q. Minor and J. Bullock and M. Kaplinghat and J. Simon and M. Geha},
  journal={Nature},
  year={2010}
}
  • G. Martinez, Q. Minor, +3 authors M. Geha
  • Published 2010
  • Physics
  • Nature
  • We introduce a comprehensive analysis of multi-epoch stellar line-of-sight velocities to determine the intrinsic velocity dispersion of the ultrafaint satellites of the Milky Way. Our method includes a simultaneous Bayesian analysis of both membership probabilities and the contribution of binary orbital motion to the observed velocity dispersion within a 14-parameter likelihood. We apply our method to the Segue 1 dwarf galaxy and conclude that Segue 1 is a dark-matter-dominated galaxy at high… CONTINUE READING

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