The accretion origin of the Milky Way's stellar halo

Eric F. Bell, Daniel B. Zucker, Vasily Belokurov, Sanjib Sharma, Kathryn V. Johnston, James S. Bullock, David W. Hogg, Knud Jahnke, Jelte T. A. de Jong, Timothy C. Beers, N. W. Evans, Eva K. Grebel, Zeljko Ivezic, Sergey E. Koposov, Hans-Walter Rix, Donald P. Schneider, Matthias Steinmetz, Adi Zolotov