SIMBAD references

2017MNRAS.472.5011D - Mon. Not. R. Astron. Soc., 472, 5011-5022 (2017/December-3)

Stellar interferometers and hypertelescopes: new insights on an angular spatial frequency approach to their non-invariant imaging.

DETTWILLER L. and LEPINE T.

Abstract (from CDS):

A general and pure wave theory of image formation for all types of stellar interferometers, including hypertelescopes, is developed in the frame of Fresnel's paraxial approximations of diffraction. For a hypertelescope, we show that the severe lack of translation invariance leads to multiple and strong spatial frequency heterodyning, which codes the very high frequencies detected by the hypertelescope into medium spatial frequencies and introduces a moire-type ambiguity for extended objects. This explains mathematically the disappointing appearance of poor resolution observed in some image simulations for hypertelescopes.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instrumentation: interferometers - instrumentation: interferometers

Simbad objects: 2

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2021.04.13-06:38:02

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