Stokes I, normalized to the continuum intensity I_cont (upper panels), and fractional linear polarization Q/I profiles (lower panels) for the IR triplet as a function of wavelength distance from the center of each line; from left to right, the 8498 Å, 8542 Å, and 8662 Å lines. The emergent profiles are shown for a near the limb line of sight, with μ = 0.1. The curves represent emergent profiles for a 5L atomic model (which cannot account for J-state interference), in solid black, and a 3T model (which accounts for J-state interference), in dashed red. The reference direction for positive Stokes Q is the parallel to the nearest limb.