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New tidal debris nearby the Sagittarius leading tail from the LAMOST DR2 M giant stars
Jing Li, Chao Liu, Jeffrey L. Carlin +7
We report two new tidal debris nearby the Sagittarius (Sgr) tidal stream in the north Galactic cap identified from the M giant stars in LAMOST DR2 data. The M giant stars with sky…
Selecting M-giants with infra-red photometry: Distances, metallicities and the Sagittarius stream
Jing Li, Martin C. Smith, Jing Zhong +9
Using a spectroscopically confirmed sample of M-giants, M-dwarfs and quasars from the LAMOST survey, we assess how well WISE 2MASS color-cuts can be used to select M-giant sta…
Characterizing the SHARDS of Disrupted Milky Way Satellites with LAMOST
Jeffrey L. Carlin, Chao Liu, Heidi Jo Newberg +7
We derive the fraction of substructure in the Galactic halo using a sample of over 10,000 spectroscopically-confirmed halo giant stars from the LAMOST spectroscopic survey. By obse…