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 …

Accreting protoplanets in the LkCa 15 transition disk

S Sallum, KB Follette, JA Eisner, LM Close, P Hinz… - Nature, 2015 - nature.com
Exoplanet detections have revolutionized astronomy, offering new insights into solar system
architecture and planet demographics. While nearly 1,900 exoplanets have now been …

LkCa 15: a young exoplanet caught at formation?

AL Kraus, MJ Ireland - The Astrophysical Journal, 2011 - iopscience.iop.org
Young and directly imaged exoplanets offer critical tests of planet-formation models that are
not matched by radial velocity surveys of mature stars. These targets have been extremely …

The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. I. Instrument Overview and In-flight Performance

R Doyon, CJ Willott, JB Hutchings… - Publications of the …, 2023 - iopscience.iop.org
Abstract The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module
of the Canadian-built Fine Guidance Sensor onboard the James Webb Space Telescope …

2023 astrophotonics roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

N Jovanovic, P Gatkine, N Anugu… - Journal of Physics …, 2023 - iopscience.iop.org
Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

The near infrared imager and Slitless spectrograph for the James Webb space telescope. IV. Aperture masking interferometry

A Sivaramakrishnan, P Tuthill, JP Lloyd… - Publications of the …, 2023 - iopscience.iop.org
Abstract The James Webb Space Telescope's Near Infrared Imager and Slitless
Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such …

Closure statistics in interferometric data

L Blackburn, DW Pesce, MD Johnson… - The Astrophysical …, 2020 - iopscience.iop.org
Interferometric visibilities, reflecting the complex correlations between signals recorded at
antennas in an interferometric array, carry information about the angular structure of a …

Performance of near-infrared high-contrast imaging methods with JWST from commissioning

J Kammerer, J Girard, AL Carter… - Space Telescopes …, 2022 - spiedigitallibrary.org
The James Webb Space Telescope (JWST) will revolutionize the field of high-contrast
imaging and enable both the direct detection of Saturn-mass planets and the …

Coherent imaging with photonic lanterns

YJ Kim, MP Fitzgerald, J Lin, S Sallum… - The Astrophysical …, 2024 - iopscience.iop.org
Photonic lanterns (PLs) are tapered waveguides that gradually transition from a multimode
fiber geometry to a bundle of single-mode fibers (SMFs). They can efficiently couple …

Starlight demonstration of the Dragonfly instrument: an integrated photonic pupil-remapping interferometer for high-contrast imaging

N Jovanovic, PG Tuthill, B Norris… - Monthly Notices of …, 2012 - academic.oup.com
In the two decades since the first extra-solar planet was discovered, the detection and
characterization of extra-solar planets has become one of the key endeavours in all of …