The Ghost of Sagittarius and Lumps in the Halo of the Milky Way

  title={The Ghost of Sagittarius and Lumps in the Halo of the Milky Way},
  author={Heidi Jo Newberg and Brian Yanny and Constance M. Rockosi and Eva K. Grebel and Hans-Walter Rix and Jonathan V. Brinkmann and Istv{\'a}n Csabai and Gregory S. Hennessy and Robert B. Hindsley and Rodrigo A. Ibata and Željko Ivezi{\'c} and Donald Q. Lamb and E. Thomas Nash and Michael Odenkirchen and Heather A. Rave and Donald P. Schneider and J. Allyn Smith and Andrea Stolte and Donald G. York},
  journal={The Astrophysical Journal},
We identify new structures in the halo of the Milky Way from positions, colors, and magnitudes of five million stars detected in the Sloan Digital Sky Survey. Most of these stars are within 126 of the celestial equator. We present color-magnitude diagrams (CMDs) for stars in two previously discovered, tidally disrupted structures. The CMDs and turnoff colors are consistent with those of the Sagittarius dwarf galaxy, as had been predicted. In one direction, we are even able to detect a clump of… 

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