April 22, 2019 updates Posted on April 22, 2019June 28, 2020 by Doug Loss Performance of the Gemini Planet Imager Non-Redundant Mask and spectroscopy of two close-separation binaries HR 2690 and HD 142527 https://arxiv.org/abs/1904.09006 Unexpectedly strong effect of supergranulation on the detectability of Earth twins orbiting Sun-like stars with radial velocities https://arxiv.org/abs/1904.09089