Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor

M N'Diaye, K Dohlen, T Fusco, B Paul - Astronomy & Astrophysics, 2013 - aanda.org
Context. Several exoplanet direct-imaging instruments (VLT-SPHERE, Gemini Planet
Imager, etc.) will soon be in operation, providing original data for comparative exoplanetary …

The future of spectroscopic life detection on exoplanets

S Seager - Proceedings of the National Academy of …, 2014 - National Acad Sciences
The discovery and characterization of exoplanets have the potential to offer the world one of
the most impactful findings ever in the history of astronomy—the identification of life beyond …

Apodized pupil Lyot coronagraphs for arbitrary apertures. V. Hybrid shaped pupil designs for imaging Earth-like planets with future space observatories

M N'Diaye, R Soummer, L Pueyo… - The Astrophysical …, 2016 - iopscience.iop.org
We introduce a new class of solutions for Apodized Pupil Lyot Coronagraphs (APLC) with
segmented aperture telescopes to remove broadband diffracted light from a star with a …

Hybrid Lyot coronagraph for WFIRST-AFTA: coronagraph design and performance metrics

J Trauger, D Moody, J Krist… - Journal of Astronomical …, 2016 - spiedigitallibrary.org
The prospect of extreme high-contrast astronomical imaging from space has inspired
developments of new coronagraph methods for exoplanet imaging and spectroscopy …

Hybrid Lyot coronagraph for WFIRST: high-contrast broadband testbed demonstration

BJ Seo, E Cady, B Gordon, B Kern… - … for Detection of …, 2017 - spiedigitallibrary.org
Hybrid Lyot Coronagraph (HLC) is one of the two operating modes of the Wide-Field
InfraRed Survey Telescope (WFIRST) coronagraph instrument. Since being selected by …

High-contrast imaging with an arbitrary aperture: active compensation of aperture discontinuities

L Pueyo, C Norman - The Astrophysical Journal, 2013 - iopscience.iop.org
We present a new method to achieve high-contrast images using segmented and/or on-axis
telescopes. Our approach relies on using two sequential deformable mirrors (DMs) to …

Apodized pupil Lyot coronagraphs for arbitrary apertures. IV. Reduced inner working angle and increased robustness to low-order aberrations

M N'Diaye, L Pueyo, R Soummer - The Astrophysical Journal, 2015 - iopscience.iop.org
ABSTRACT The Apodized Pupil Lyot Coronagraph (APLC) is a diffraction suppression
system installed in the recently deployed instruments Palomar/P1640, Gemini/GPI, and …

Ring-apodized vortex coronagraphs for obscured telescopes. I. Transmissive ring apodizers

D Mawet, L Pueyo, A Carlotti… - The Astrophysical …, 2013 - iopscience.iop.org
The vortex coronagraph (VC) is a new generation small inner working angle (IWA)
coronagraph currently offered on various 8 m class ground-based telescopes. On these …

A hybrid Lyot coronagraph for the direct imaging and spectroscopy of exoplanet systems: recent results and prospects

J Trauger, D Moody, B Gordon, J Krist… - … and Instrumentation for …, 2011 - spiedigitallibrary.org
We report our best laboratory contrast demonstrations achieved to date. We review the
design, fabrication, performance, and future prospects of a hybrid focal plane occulter for …

Complex apodization Lyot coronagraphy for the direct imaging of exoplanet systems: design, fabrication, and laboratory demonstration

J Trauger, D Moody, B Gordon, J Krist… - Space Telescopes and …, 2012 - spiedigitallibrary.org
We review the design, fabrication, performance, and future prospects for a complex
apodized Lyot coronagraph for highcontrast exoplanet imaging and spectroscopy. We …