Emeritus Professor of Astronomy
Ph.D., University of California-Santa Cruz, 1972
Instrumental, observational, and analytical applications of astronomical polarimetry; optical studies of stellar envelopes and the polarization that arises from scattering by interstellar dust.
● WISP The Wide-field Imaging Survey Polarimeter
● FUSP The Far-Ultraviolet SpectroPolarimeter
● HPOL The WIYN/PBO Spectropolarimeter
● SALT/ PFIS The Southern African Large Telescope/ Prime Focus Imaging Spectrograph