A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy

@article{Simon2010ACS,
  title={A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy},
  author={J. Simon and M. Geha and Q. Minor and G. Martinez and E. Kirby and J. Bullock and M. Kaplinghat and L. Strigari and B. Willman and P. Choi and E. Tollerud and J. Wolf},
  journal={The Astrophysical Journal},
  year={2010},
  volume={733},
  pages={46}
}
We present the results of a comprehensive Keck/DEIMOS spectroscopic survey of the ultra-faint Milky Way satellite galaxy Segue 1. We have obtained velocity measurements for 98.2% of the stars within 67 pc (10', or 2.3 half-light radii) of the center of Segue 1 that have colors and magnitudes consistent with membership, down to a magnitude limit of r = 21.7. Based on photometric, kinematic, and metallicity information, we identify 71 stars as probable Segue 1 members, including some as far out… Expand
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