Extreme adaptive optics

O Guyon - Annual Review of Astronomy and Astrophysics, 2018 - annualreviews.org
Over the last two decades, several thousand exoplanets have been identified, and their
study has become a high scientific priority. Direct imaging of nearby exoplanets and the …

Images of embedded Jovian planet formation at a wide separation around AB Aurigae

T Currie, K Lawson, G Schneider, W Lyra… - Nature …, 2022 - nature.com
Direct images of protoplanets embedded in disks around infant stars provide the key to
understanding the formation of gas giant planets such as Jupiter. Using the Subaru …

Imaging extrasolar giant planets

BP Bowler - Publications of the Astronomical Society of the …, 2016 - iopscience.iop.org
High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

SPHERE: the exoplanet imager for the Very Large Telescope

JL Beuzit, A Vigan, D Mouillet, K Dohlen… - Astronomy & …, 2019 - aanda.org
Observations of circumstellar environments that look for the direct signal of exoplanets and
the scattered light from disks have significant instrumental implications. In the past 15 years …

The Subaru coronagraphic extreme adaptive optics system: enabling high-contrast imaging on solar-system scales

N Jovanovic, F Martinache, O Guyon… - Publications of the …, 2015 - iopscience.iop.org
Abstract The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a
multipurpose high-contrast imaging platform designed for the discovery and detailed …

SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies

J Lozi, O Guyon, N Jovanovic, S Goebel… - … Optics Systems VI, 2018 - spiedigitallibrary.org
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is an extremely
modular high-contrast instrument installed on the Subaru telescope in Hawaii. SCExAO has …

Concurrent vibrational circular dichroism measurements with infrared spectroscopic imaging

Y Phal, K Yeh, R Bhargava - Analytical chemistry, 2020 - ACS Publications
Vibrational circular dichroism (VCD) spectroscopy has emerged as a powerful platform to
quantify chirality, a vital biological property that performs a pivotal role in the metabolism of …

SCExAO and keck direct imaging discovery of a low-mass companion around the accelerating f5 star HIP 5319

N Swimmer, T Currie, S Steiger, GM Brandt… - The Astronomical …, 2022 - iopscience.iop.org
We present the direct imaging discovery of a low-mass companion to the nearby
accelerating F star, HIP 5319, using SCExAO coupled with the CHARIS, VAMPIRES, and …

[HTML][HTML] Single-aperture spectro-interferometry in the visible at the Subaru telescope with FIRST: First on-sky demonstration on Keho 'oea (α Lyrae) and Hokulei (α …

S Vievard, E Huby, S Lacour, O Guyon… - Astronomy & …, 2023 - aanda.org
Aims. FIRST is a spectro-interferometer combining, in the visible, the techniques of aperture
masking and spatial filtering thanks to single-mode fibers. By turning a monolithic telescope …

On-sky verification of Fast and Furious focal-plane wavefront sensing: Moving forward toward controlling the island effect at Subaru/SCExAO

SP Bos, S Vievard, MJ Wilby, F Snik, J Lozi… - Astronomy & …, 2020 - aanda.org
Context. High-contrast imaging (HCI) observations of exoplanets can be limited by the island
effect (IE). The IE occurs when the main wavefront sensor (WFS) cannot measure sharp …