Context . Wavefront sensing and control (WFSC) will play a key role in improving the stability of future large segmented space telescopes while relaxing the thermo-mechanical constraints on the observatory structure. Coupled with a coronagraph to reject the light of an observed bright star, WFSC enables the generation and stabilisation of a dark hole (DH) in the star image to perform planet observations. Aims . While WFSC traditionally relies on a single wavefront sensor (WFS) input to measure wavefront errors, the next generation of instruments will require several WFSs to address aberrations with different sets of spatial and temporal frequency contents. The multiple measurements produced in such a way will then have to be combined and co...
International audienceDue to the limited number of photons, directly imaging planets requires long i...
WFIRST-AFTA design makes use of an existing 2.4m telescope for direct imaging of exoplanets. To main...
International audienceNew space missions dedicated to exoplanet imaging will rely on coronagraphs to...
Context . Wavefront sensing and control (WFSC) will play a key role in improving the stability of fu...
International audienceContext. The combination of large segmented space telescopes, coronagraphy, an...
Context. The combination of large segmented space telescopes, coronagraphy, and wavefront control me...
Detecting faint companions in close proximity to stars is one of the major goals of current/planned ...
International audienceFuture large segmented space telescopes and their coronagraphic instruments ar...
The ability to characterize exoplanets by spectroscopy of their atmospheres requires direct imaging ...
Future space telescopes with coronagraph instruments will use a wavefront sensor (WFS) to measure an...
International audienceImaging exo-Earths is an exciting but challenging task because of the 10-10 co...
International audienceContext. Fewer than 1% of all exoplanets detected to date have been characteri...
To maintain the required WFIRST Coronagraph performance in a realistic space environment, a low orde...
L’imagerie d’exoplanètes est limitée par deux obstacles intrinsèques : le faible écart angulaire ent...
The PICTURE-C mission will fly a 60 cm off-axis unobscured telescope and two high-contrast coronagra...
International audienceDue to the limited number of photons, directly imaging planets requires long i...
WFIRST-AFTA design makes use of an existing 2.4m telescope for direct imaging of exoplanets. To main...
International audienceNew space missions dedicated to exoplanet imaging will rely on coronagraphs to...
Context . Wavefront sensing and control (WFSC) will play a key role in improving the stability of fu...
International audienceContext. The combination of large segmented space telescopes, coronagraphy, an...
Context. The combination of large segmented space telescopes, coronagraphy, and wavefront control me...
Detecting faint companions in close proximity to stars is one of the major goals of current/planned ...
International audienceFuture large segmented space telescopes and their coronagraphic instruments ar...
The ability to characterize exoplanets by spectroscopy of their atmospheres requires direct imaging ...
Future space telescopes with coronagraph instruments will use a wavefront sensor (WFS) to measure an...
International audienceImaging exo-Earths is an exciting but challenging task because of the 10-10 co...
International audienceContext. Fewer than 1% of all exoplanets detected to date have been characteri...
To maintain the required WFIRST Coronagraph performance in a realistic space environment, a low orde...
L’imagerie d’exoplanètes est limitée par deux obstacles intrinsèques : le faible écart angulaire ent...
The PICTURE-C mission will fly a 60 cm off-axis unobscured telescope and two high-contrast coronagra...
International audienceDue to the limited number of photons, directly imaging planets requires long i...
WFIRST-AFTA design makes use of an existing 2.4m telescope for direct imaging of exoplanets. To main...
International audienceNew space missions dedicated to exoplanet imaging will rely on coronagraphs to...