LoCuSS: First Results from Strong-lensing Analysis of 20 Massive Galaxy Clusters at z~0.2 (2009)
Richard, Johan, Smith, Graham, Kneib, Jean-Paul, Ellis, Richard, Sanderson, Alastair, Pei, Liuyi, ...
We present a statistical analysis of a sample of 20 strong lensing clusters drawn from the Local Cluster Substructure Survey (LoCuSS), based on high resolution Hubble Space Telescope imaging of the...
Party Polarization in Congress: A Social Networks Approach (2009)
Waugh, Andrew Scott, Pei, Liuyi, Fowler, James H., Mucha, Peter J., Porter, Mason A.
We use the network science concept of modularity to measure polarization in the U.S. Congress. Modularity provides a conceptually-clear measure of polarization that directly reveals both the number...
Richard, Johan, Pei, Liuyi, Limousin, Marceau, Jullo, Eric, Kneib, Jean-Paul
Strong gravitational lensing is a unique tool to model with great accuracy the inner mass distribution of massive galaxy clusters. In particular, clusters with large Einstein radii provide a wealth...