activity
20152026
most citedUsing the Multi-Object Adaptive Optics demonstrator RAVEN to observe metal-poor stars in and towards the Galactic Centre

24 citations · 120 across the 14 of their papers we have counts for

collaborators

15 papers

astro-ph.IM2026

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…

astro-ph.EP2026

SCExAO/CHARIS High-Contrast Pre-Launch Vetting of Roman Coronagraph Technology Demonstration PSF Reference Stars

Thayne Currie, Jie Li, Mona El Morsy +9

We present deep, SCExAO/CHARIS high-contrast integral field spectroscopy and archival imaging of four candidate Roman Coronagraph PSF reference stars within/near the Roman Continuo…

astro-ph.EP2026

Technology and Science Advancing Observations with Roman Coronagraph Informed by Ground-Based High-Contrast Imaging

Mona El Morsy, Thayne Currie, Brianna Lacy +10

The Roman Coronagraph technology demonstration focuses on achieving 10 contrasts within the instrument's dark hole and our ability to detect and characterize properties…

astro-ph.IM2024

AO3k at Subaru: First on-sky results of the facility extreme-AO

Julien Lozi, Kyohoon Ahn, Hannah Blue +12

The facility adaptive optics of the Subaru Telescope AO188 recently received some long-awaited upgrades: a new 3224-actuator deformable mirror (DM) from ALPAO (hence the name chang…

astro-ph.IM2023

SHARPEST: The atmospheric turbulence profiling experiment using Shack-Hartmann sensor at the Subaru telescope

Hajime Ogane, Yoshito Ono, Yosuke Minowa +5

Atmospheric turbulence profile plays an important role in designing and operating adaptive optics (AO) systems with multiple laser guide stars. To obtain representative free atmosp…

astro-ph.IM2022★ 16 cited

AO3000 at Subaru: Combining for the first time a NIR WFS using First Light's C-RED ONE and ALPAO's 64x64 DM

Julien Lozi, Kyohoon Ahn, Christophe Clergeon +7

After 16 years of on-sky operation, Subaru Telescope's facility adaptive optics AO188 is getting several major upgrades to become the extreme-AO AO3000 (3000 actuators in the pupil…