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Multiband imaging of the HD 36546 debris disk: a refined view from SCExAO/CHARIS
Kellen Lawson, Thayne Currie, John P. Wisniewski +21
We present the first multi-wavelength (near-infrared; ) imaging of HD 36546's debris disk, using the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system co…
High contrast imaging wavefront sensor referencing from coronagraphic images
Nour Skaf, Olivier Guyon, Anthony Boccaletti +11
A key challenge of high contrast imaging (HCI) is to differentiate a speckle from an exoplanet signal. The sources of speckles are a combination of atmospheric residuals and aberra…
On-sky validation of image-based adaptive optics wavefront sensor referencing
Nour Skaf, Olivier Guyon, Eric Gendron +14
Differentiating between an exoplanet signal and residual speckle noise is a key challenge in high-contrast imaging. Speckles are due to a combination of fast, slow and static wavef…
High contrast imaging at the photon noise limit with self-calibrating WFS/C systems
Olivier Guyon, Barnaby Norris, Marc-Antoine Martinod +20
High contrast imaging (HCI) systems rely on active wavefront control (WFC) to deliver deep raw contrast in the focal plane, and on calibration techniques to further enhance contras…
SCExAO, a testbed for developing high-contrast imaging technologies for ELTs
Kyohoon Ahn, Olivier Guyon, Julien Lozi +21
To directly detect exoplanets and protoplanetary disks, the development of high accuracy wavefront sensing and control (WFS&C) technologies is essential, especially for ground-base…
SCExAO/CHARIS Direct Imaging of A Low-Mass Companion At A Saturn-Like Separation from an Accelerating Young A7 Star
Jeffrey Chilcote, Taylor Tobin, Thayne Currie +17
We present the SCExAO direct imaging discovery and characterization of a low-mass companion to the nearby young A7IV star, HD 91312. SCExAO/CHARIS (1.1-2.4 ) spectra and…