Imaging exoplanets with coronagraphic instruments
R Galicher, J Mazoyer - Comptes …, 2023 - comptes-rendus.academie-sciences …
L'exoplanétologie est un domaine très actif de l'astronomie moderne avec des questions
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …
High performance PIAA coronagraphy with complex amplitude focal plane masks
We describe a coronagraph approach where the performance of a Phase-Induced
Amplitude Apodization (PIAA) coronagraph is improved by using a partially transmissive …
Amplitude Apodization (PIAA) coronagraph is improved by using a partially transmissive …
End-to-end numerical modeling of the Roman Space Telescope coronagraph
JE Krist, JB Steeves, BD Dube… - Journal of …, 2023 - spiedigitallibrary.org
The Roman Space Telescope will have the first advanced coronagraph in space, with
deformable mirrors (DMs) for wavefront control (WFC), low-order wavefront sensing and …
deformable mirrors (DMs) for wavefront control (WFC), low-order wavefront sensing and …
Lyot-based low order wavefront sensor for phase-mask coronagraphs: principle, simulations and laboratory experiments
G Singh, F Martinache, P Baudoz… - Publications of the …, 2014 - iopscience.iop.org
High performance coronagraphic imaging of faint structures around bright stars at small
angular separations requires fine control of tip, tilt, and other low order aberrations. When …
angular separations requires fine control of tip, tilt, and other low order aberrations. When …
Coronagraphic low-order wave-front sensor: principle and application to a phase-induced amplitude coronagraph
High-contrast coronagraphic imaging of the immediate surrounding of stars requires
exquisite control of low-order wave-front aberrations, such as tip–tilt (pointing) and focus. We …
exquisite control of low-order wave-front aberrations, such as tip–tilt (pointing) and focus. We …
High-contrast imaging and wavefront control with a PIAA coronagraph: laboratory system validation
O Guyon, E Pluzhnik, F Martinache… - Publications of the …, 2009 - iopscience.iop.org
ABSTRACT The Phase-Induced Amplitude Apodization (PIAA) coronagraph is a high-
performance coronagraph concept able to work at small angular separation with little loss in …
performance coronagraph concept able to work at small angular separation with little loss in …
How ELTs will acquire the first spectra of rocky habitable planets
ELTs will offer angular resolution around 10mas in the near-IR and unprecedented
sensitivity. While direct imaging of Earth-like exoplanets around Sun-like stars will stay out of …
sensitivity. While direct imaging of Earth-like exoplanets around Sun-like stars will stay out of …
Optical phase retrieval with the image of intensity in the focal plane based on the convolutional neural networks
AP Dzyuba - Journal of Physics: Conference Series, 2019 - iopscience.iop.org
One of the most important factors for improving the resolution of optical systems is to
compensate for the aberrations (distortions) of the wave front. As a rule, whether special …
compensate for the aberrations (distortions) of the wave front. As a rule, whether special …
ACCESS: a concept study for the direct imaging and spectroscopy of exoplanetary systems
J Trauger, K Stapelfeldt, W Traub, J Krist… - Space Telescopes …, 2010 - spiedigitallibrary.org
ACCESS is one of four medium-class mission concepts selected for study in 2008-9 by
NASA's Astrophysics Strategic Mission Concepts Study program. ACCESS evaluates a …
NASA's Astrophysics Strategic Mission Concepts Study program. ACCESS evaluates a …
Design and performance analysis of a PIAACMC coronagraph on a segmented aperture
To directly image and characterize exoplanets, starlight suppression systems rely on
coronagraphs to optically remove starlight while preserving planet light for spectroscopy …
coronagraphs to optically remove starlight while preserving planet light for spectroscopy …