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On-sky performance and recent results from the Subaru coronagraphic extreme adaptive optics system
Thayne Currie, Olivier Guyon, Julien Lozi +10
We describe the current on-sky performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii. SCExAO is continuing…
Optical Verification Experiments of Sub-scale Starshades
Anthony Harness, Stuart Shaklan, Phillip Willems +7
Starshades are a leading technology to enable the detection and spectroscopic characterization of Earth-like exoplanets. In this paper we report on optical experiments of sub-scale…
SCExAO/CHARIS Near-IR Integral Field Spectroscopy of the HD 15115 Debris Disk
Kellen Lawson, Thayne Currie, John P. Wisniewski +23
We present new, near-infrared ( ) high-contrast imaging of the debris disk around HD 15115 with the Subaru Coronagraphic Extreme Adaptive Optics system (SCExAO) coup…
On the Effects of Pointing Jitter, Actuators Drift, Telescope Rolls and Broadband Detectors in Dark Hole Maintenance and Electric Field Order Reduction
Leonid Pogorelyuk, Laurent Pueyo, N. Jeremy Kasdin
Space coronagraphs are projected to detect exoplantes that are at least 1e10 times dimmer than their host stars. Yet, the actual detection threshold depends on the instrument's wav…
Bernoulli generalized likelihood ratio test for signal detection from photon counting images
Mengya Hu, He Sun, Anthony Harness +1
Because exoplanets are extremely dim, an Electron Multiplying Charged Coupled Device (EMCCD) operating in photon counting (PC) mode is necessary to reduce the detector noise level…
High-Contrast Integral Field Spectrograph (HCIFS): multi-spectral wavefront control and reduced-dimensional system identification
He Sun, Alexei Goun, Susan Redmond +4
Any high-contrast imaging instrument in a future large space-based telescope will include an integral field spectrograph (IFS) for measuring broadband starlight residuals and chara…