Pearson‐Readhead Survey Sources. II. The Long‐Term Centimeter‐Band Total Flux and Linear Polarization Properties of a Complete Radio Sample

Abstract

Using UMRAO centimeter-band total flux density and linear polarizationmonitoring observations of the complete Pearson-Readhead extragalacticsource sample obtained between 1984 August and 2001 March, we identifythe range of variability in extragalactic objects as functions ofoptical and radio morphological classification and relate total fluxdensity variations to structural changes in published coeval VLBImaps in selected objects. As expected, variability is common in flat-or inverted-spectrum (α