146 citations · 312 across the 40 of their papers we have counts for
9 papers · 1 filter
Practical limits on Nanosatellite Telescope Pointing: The Impact of Disturbances and Photon Noise
Ewan S. Douglas, Kevin Tracy, Zachary Manchester
Accurate and stable spacecraft pointing is a requirement of many astronomical observations. Pointing particularly challenges nanosatellites because of an unfavorable surface area t…
Demonstration of magnetic and light-controlled actuation of a photomagnetically actuated deformable mirror for wavefront control
Amit Kumar Jha, Ewan S. Douglas, Meng Li +2
Deformable Mirrors (DMs) have wide applications ranging from astronomical imaging to laser communications and vision science. However, they often require bulky multi-channel cables…
Sensitivity of the Roman Coronagraph Instrument to Exozodiacal Dust
Ewan S Douglas, John Debes, Bertrand Mennesson +7
Exozodiacal dust, warm debris from comets and asteroids in and near the habitable zone of stellar systems, reveals the physical processes that shape planetary systems. Scattered li…
Design of the vacuum high contrast imaging testbed for CDEEP, the Coronagraphic Debris and Exoplanet Exploring Pioneer
Erin R. Maier, Ewan S. Douglas, Daewook Kim +26
The Coronagraphic Debris Exoplanet Exploring Payload (CDEEP) is a Small-Sat mission concept for high contrast imaging of circumstellar disks. CDEEP is designed to observe disks in…
Updated simulation tools for Roman coronagraph PSFs
Kian Milani, Ewan S. Douglas, Jaren Ashcraft
The Nancy Grace Roman Space Telescope Coronagraph Instrument will be the first large scale coronagraphmission with active wavefront control to be operated in space and will demonst…
The Versatile CubeSat Telescope: Going to Large Apertures in Small Spacecraft
Jaren N. Ashcraft, Ewan S. Douglas, Daewook Kim +10
The design of a CubeSat telescope for academic research purposes must balance complicated optical and structural designs with cost to maximize performance in extreme environments.…