Age determination is undertaken for nearby early type (BAF) stars, which constitute attractive targets for high-contrast debris disk and planet imaging surveys. Our analysis sequence consists of acquisition of ubvy{beta} photometry from catalogs, correction for the effects of extinction, interpolation of the photometry onto model atmosphere grids from which atmospheric parameters are determined, and finally, comparison to the theoretical isochrones from pre-main sequence through post-main sequence stellar evolution models, accounting for the effects of stellar rotation. We calibrate and validate our methods at the atmospheric parameter stage by comparing our results to fundamentally determined T_eff_ and log g values. We validate and test our methods at the evolutionary model stage by comparing our results on ages to the accepted ages of several benchmark open clusters (IC2602, {alpha} Persei, Pleiades, Hyades). Finally, we apply our methods to estimate stellar ages for 3493 field stars, including several with directly imaged exoplanet candidates.

Cone search capability for table J/ApJ/804/146/table4 (Open cluster ages)

Cone search capability for table J/ApJ/804/146/table5 (Ages, masses, and atmospheric parameters of nearby B0-F5 field stars)

Cone search capability for table J/ApJ/804/146/members (Dereddened uvbyH{beta} photometry and atmospheric parameters for IC 2602, {alpha} Per, Pleiades and Hyades members)