Citation:
Monnier JD, Harries TJ, Aarnio A, Adams FC, Andrews S, Calvet N, Espaillat C, Hartmann L, Hinkley S, Kraus S, et al. Polarized Disk Emission from Herbig Ae/Be Stars Observed Using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142. \apj. 2017;838 (1) :20.