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, Željko Ivezić, Sergey E. Koposov, Hans Walter Rix, Donald P. Schneider, Matthias Steinmetz, Adi Zolotov