Add to ORKGDiffraction effects of large segmented mirror gaps and secondary mirror support struts produce diffraction peaks or flares that are a detriment to exoplanet detection. In this paper we present detailed parametric diffraction analyses of an innovative “Pinwheel Pupil” segmented mirror concept utilizing curved segment gaps and secondary support struts that can potentially eliminate these diffraction flares that can obscure a faint exoplanet image. The resulting numerical diffraction performance predictions are quantitatively compared to that of both ideal monolithic circular pupils and classical annular pupils with straight secondary mirror struts. We utilize performance – based merit functions consisting of both radial and azimuthal profiles...
Direct detection and characterization of exoplanets is a major scientific driver of the next decade....
High-contrast imaging, particularly direct detection of extrasolar planets, is a major science drive...
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant cor...
Diffraction effects of large segmented mirror gaps and secondary mirror support struts produce diffr...
Terrestrial exoplanets shine in light reflected from a parent star. Optical spectra are required to ...
Future large aperture telescopes and high contrast imaging systems will often include segment gaps, ...
The practical use of astrometry to detect exoplanets via the reflex motion of the parent star depend...
In this paper we examine several contrast-degrading static signature sources present in current terr...
Measuring masses of long-period planets around F, G, and K stars is necessary to characterize exopla...
Modern optical telescopes are giving us unprecedented imaging of the Universe in order to probe into...
International audienceWe search for the best possible transmission for an external occulter coronagr...
Future NASA flagship missions will require the collecting area and resolving power of 6 meter or lar...
For directly imaging exoplanets, NASA is considering space mission designs that use an external occu...
Three exoplanets around the star HR 8799 have recently been discovered by means of differential imag...
Wide-angle heliospheric imagers such as those carried on the SMEI and STEREO spacecraft require high...
Direct detection and characterization of exoplanets is a major scientific driver of the next decade....
High-contrast imaging, particularly direct detection of extrasolar planets, is a major science drive...
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant cor...
Diffraction effects of large segmented mirror gaps and secondary mirror support struts produce diffr...
Terrestrial exoplanets shine in light reflected from a parent star. Optical spectra are required to ...
Future large aperture telescopes and high contrast imaging systems will often include segment gaps, ...
The practical use of astrometry to detect exoplanets via the reflex motion of the parent star depend...
In this paper we examine several contrast-degrading static signature sources present in current terr...
Measuring masses of long-period planets around F, G, and K stars is necessary to characterize exopla...
Modern optical telescopes are giving us unprecedented imaging of the Universe in order to probe into...
International audienceWe search for the best possible transmission for an external occulter coronagr...
Future NASA flagship missions will require the collecting area and resolving power of 6 meter or lar...
For directly imaging exoplanets, NASA is considering space mission designs that use an external occu...
Three exoplanets around the star HR 8799 have recently been discovered by means of differential imag...
Wide-angle heliospheric imagers such as those carried on the SMEI and STEREO spacecraft require high...
Direct detection and characterization of exoplanets is a major scientific driver of the next decade....
High-contrast imaging, particularly direct detection of extrasolar planets, is a major science drive...
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant cor...