Presentation #513.07 in the session “Star and Brown Dwarf Fundamental Properties”.
The VERITAS Stellar Intensity Interferometer (VSII) has been performing high angular resolution ( < 1 mas) observations of bright (MV=1-3), hot (O/B/A spectral classification) stars since 2019. For the 2020-2021 observing season, VSII is observing a range of astrophysical targets, including a range of spectral types and magnitudes, fast rotators, Cepheid variables, and binary/multiple star systems with short orbital periods (< 20 days). The VSII observing program has been designed to provide a catalog of stellar radial measurements of northern hemisphere stars and explore potential sensitivity improvements. In this talk, I will describe the technical status and new science results associated with VSII observations during 2020.