Improved optical mass tracer for galaxy clusters calibrated using weak lensing measurements (2008)
Reyes, Reinabelle, Mandelbaum, Rachel, Hirata, Christopher M., Bahcall, Neta, Seljak, Uros
We develop an improved mass tracer for clusters of galaxies from optically observed parameters, and calibrate the mass relation using weak gravitational lensing measurements. We employ a sample of ~...
Space density of optically-selected type 2 quasars (2008)
Reyes, Reinabelle, Zakamska, Nadia L., Strauss, Michael A., Green, Joshua, Krolik, Julian H., Shen, Yue, ...
Type 2 quasars are luminous active galactic nuclei (AGN) whose central regions are obscured by large amounts of gas and dust. In this paper, we present a catalog of type 2 quasars from the Sloan...