An achromatic interfero-coronagraph.

Details An achromatic interfero-coronagraph. An achromatic interfero-coronagraph.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997crasb.325...51g&link_type=abstract

Comptes Rendus de l'Academie des Sciences, Sér. II, Fasc. b, Tome 325, No. 1, p. 51 - 56

Physics

Optics

4

Extrasolar Planets: Coronographs

Scientific paper

The authors examine the potential performances of the achromatic interfero-coronagraph for a ground-based exploitation with a telescope using adaptive optics. The lower Zernike modes, which perturb the fraction of the field near the central star, are well corrected. This allows the perception of faint circumstellar features or companions up to as near as the third part of the first dark Airy ring, a region inaccessible to classical occultation coronagraph.

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