131 citations · 1.1k across the 67 of their papers we have counts for
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Astrometric Accelerations as Dynamical Beacons: Discovery and Characterization of HIP 21152 B, the First T-Dwarf Companion in the Hyades
Kyle Franson, Brendan P. Bowler, Mariangela Bonavita +28
Benchmark brown dwarf companions with well-determined ages and model-independent masses are powerful tools to test substellar evolutionary models and probe the formation of giant p…
Laboratory Demonstration of Optimal Identification and Control of Tip-Tilt Systems
Aditya R. Sengupta, Benjamin L. Gerard, Daren Dillon +3
We present the results of testing optimal linear-quadratic-Gaussian (LQG) control for tip and tilt Zernike wavefront modes on the SEAL (Santa cruz Extreme AO Lab) testbed. The cont…
Design of SCALES: A 2-5 Micron Coronagraphic Integral Field Spectrograph for Keck Observatory
Andrew Skemer, R. Deno Stelter, Stephanie Sallum +49
We present the design of SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy) a new 2-5 micron coronagraphic integral field spectrograph under construction fo…
Various Wavefront Sensing and Control Developments on the Santa Cruz Extreme AO Laboratory (SEAL) Testbed
Benjamin L. Gerard, Javier Perez-Soto, Vincent Chambouleyron +7
Ground-based high contrast imaging (HCI) and extreme adaptive optics (AO) technologies have advanced to the point of enabling direct detections of gas-giant exoplanets orbiting bey…
Connecting the astronomical testbed community -- the CAOTIC project: Optimized teaching methods for software version control concepts
Iva Laginja, Pablo Robles, Kevin Barjot +4
Laboratory testbeds are an integral part of conducting research and developing technology for high-contrast imaging and extreme adaptive optics. There are a number of laboratory gr…
Battle of the Predictive Wavefront Controls: Comparing Data and Model-Driven Predictive Control for High Contrast Imaging
J. Fowler, Maaike A. M. Van Kooten, Rebecca Jensen-Clem
Ground-based high contrast exoplanet imaging requires state-of-the-art adaptive optics (AO) systems in order to detect extremely faint planets next to their brighter host stars. Fo…
Laboratory Demonstration of Real-Time Focal Plane Wavefront Control of Residual Atmospheric Speckles
Benjamin L. Gerard, Daren Dillon, Sylvain Cetre +1
Current and future high contrast imaging instruments aim to detect exoplanets at closer orbital separations, lower masses, and/or older ages than their predecessors. However, conti…
Predictive wavefront control on Keck II adaptive optics bench: on-sky coronagraphic results
Maaike A. M. van Kooten, Rebecca Jensen-Clem Sylvain Cetre, Sam Ragland +3
The behavior of an adaptive optics (AO) system for ground-based high contrast imaging (HCI) dictates the achievable contrast of the instrument. In conditions where the coherence ti…
On-sky reconstruction of Keck Primary Mirror Piston Offsets using a Zernike Wavefront Sensor
Maaike A. M. van Kooten, Sam Ragland, Rebecca Jensen-Clem +3
The next generation of large ground- and space-based optical telescopes will have segmented primary mirrors. Co-phasing the segments requires a sensitive wavefront sensor capable o…