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9 papers · 2 filters
High-contrast imager for complex aperture telescopes (HiCAT): 8. Dark zone demonstration with simultaneous closed-loop low-order wavefront sensing and control
Rémi Soummer, Emiel H. Por, Raphaël Pourcelot +27
We present recent laboratory results demonstrating high-contrast coronagraphy for the future space-based large IR/Optical/Ultraviolet telescope recommended by the Decadal Survey. T…
RISTRETTO: a VLT XAO design to reach Proxima Cen b in the visible
N. Blind, M. Shinde, I. Dinis +10
RISTRETTO is the evolution of the original idea of coupling the VLT instruments SPHERE and ESPRESSO \cite{lovis_2016a}, aiming at High Dispersion Coronagraphy. RISTRETTO is a visit…
ESCAPE project. CAPyBARA: a Roman Coronagraph simulator for post-processing methods development
Lisa Altinier, Élodie Choquet, Arthur Vigan +2
The Roman Coronagraph Instrument will be the first space facility equipped with deformable mirrors (DMs). These will lead to reach a contrast of or better in a dark hole…
ESCAPE project: fundamental detection limits of JWST/NIRCam coronographic observations
N. Godoy, E. Choquet, L. Altinier +4
In this study, we explored the fundamental contrast limit of NIRCam coronagraphy observations, representing the achievable performance with post-processing techniques. This limit i…
AtLAST Science Overview Report
Mark Booth, Pamela Klaassen, Claudia Cicone +81
Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current…
On the links between Astronomy, Astronomers, and Science Fiction
Samuel Boissier
Science Fiction is using astronomy to offer to the public blockbusters at the movies (e.g. Interstellar), series or movies in streaming media (Don't Look Up, The Expanse), many boo…