Calibrating Evolution in the Tully-Fisher Relation

We reevaluate evidence for luminosity evolution in the intermediate-redshift Tully-Fisher relation (TFR), focusing on the spatially resolved kinematic data sets of Vogt et al. (1997) and Simard & Pritchet (1998). We use low-z data from the Nearby Field Galaxy Survey (NFGS) to match the intermediate-z studies' sample selection criteria, analysis techniques, and data quality. The passively evolving disk galaxy sample of Vogt et al. shows no luminosity evolution within the errors, approximately connrming these authors' results. The OII]-selected sample of Simard & Pritchet shows .0.5 mag of luminosity evolution, substantially less than the 1.5{2 mag originally reported; we trace about half of the original ooset to radial truncation in the S&P rotation curves. Looking toward future studies of evolution in the TFR, we also provide a new calibration of the low-z TFR designed for direct comparison with intermediate and high-z data, based on a morphology-blind sample of bright emission-line galaxies. Within this sample, TF residuals vary systematically as a function of color and H equivalent width.