4 papers
Addressing the low-wind effect with the Lyot-based low-order wavefront sensor on SCExAO
Garima Singh, Sebastien Vievard, Julien Lozi +5
The Low-Wind Effect (LWE) is a well-known issue that affects the coronagraphic capabilities of instruments optimized to take direct images of exoplanets. This effect is prominent i…
AO3k + SCExAO: on-sky wavefront quality and demonstration of novel WFS techniques with the double XAO system
Julien Lozi, Kyohoon Ahn, Vincent Deo +5
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system, fed by its upstream 3000-actuator "woofer" (AO3k), serves both as a platform for high contrast imaging (HCI) techn…
Spectral Selection in Sphere-Constrained Flows Generated by Polynomials of the Dirichlet Laplacian
Javed Hussain
Let be a bounded smooth domain and let be the positive Dirichlet Laplacian on . For a real polynomial with positive leading coefficient, w…
FIRST-PL: Commissioning the first visible photonic lantern spectrograph for sub-diffraction-limit astronomy on Subaru/SCExAO
Sebastien Vievard, Elsa Huby, Sylvestre Lacour +18
FIRST-PL (Fibered Imager foR a Single Telescope - Photonic Lantern) is a newly commissioned visible-light instrument on Subaru/SCExAO achieving spectroscopy below the diffraction l…