Wisconsin PCA-based Stellar Masses and Velocity Dispersions

Yan-Mei Chen, Guinevere Kauffmann, Christy A. Tremonti, Simon White, Timothy M. Heckman, Katarina Kovač, Kevin Bundy, John Chisholm, Claudia Maraston, Donald P. Schneider, Adam S. Bolton, Benjamin A. Weaver, Jon Brinkmann
Wisconsin stellar masses and velocity dispersions are derived from the optical rest-frame spectral region (3700-5500 Ångstroms) using a principal component analysis (PCA) method (Chen et al. 2012). The estimation is based on a library of model spectra generated using the single stellar population models of Bruzal & Charlot (2003) and Maraston & Strömbäck (2011), and with a broad range of star-formation histories, metallicities, dust extinctions, and stellar velocity dispersions.