KUDO , T.

State-of-the-art coronagraphs employed on extreme adaptive optics enabled instruments are constantly improving thecontrast detection limit for companions at ever-closer separations from the host star. In order to constrain theirproperties and, ultimately, compositions, it is important to precisely determine orbital parameters and contrasts...

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Direct detection and spectroscopy of exoplanets requires high-contrast imaging. For habitable exoplanets in particular, located at a small angular separation from the host star, it is crucial to employ small inner working angle (IWA) coronagraphs that efficiently suppress starlight. These coronagraphs, in turn, require careful control of...

The vector vortex is a coronagraphic imaging mode of the recently commissioned Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) platform on the 8 m Subaru Telescope. This multi-purpose high-contrast visible and near-infrared (R- to K-band) instrument is not only intended to serve as a VLT-class "planet-imager" instrument in the northern...

International audience

International audience

International audience

International audience