Possible evidence for partial differentiation of asteroid Lutetia from Rosetta

Benjamin P. Weiss, Linda T. Elkins-Tanton, M. Antonietta Barucci, Holger Sierks, Colin Snodgrass, Jean Baptiste Vincent, Simone Marchi, Paul R. Weissman, Martin Pätzold, Ingo Richter, Marcello Fulchignoni, Richard P. Binzel, Rita Schulz