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Browsing by Subject "Optical interferometry"

Browsing by Subject "Optical interferometry"

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  • Computationally efficient method for retrieval of atmospherically distorted astronomical images 
    Surya, A; Saha, S. K (Springer, 2014-12)
    Speckle Imaging based on triple correlation is a very efficient image reconstruction technique which is used to retrieve Fourier phase information of the object in presence of atmospheric turbulence. We have developed both ...
  • Construction of a 57m hypertelescope in the southern Alps 
    Labeyrie, A; Allouche, F; Mourard, D; Bolgar, F; Chakraborthy, R; Maillot, J; Palitzyne, N; Poletti, J. R; Rochaix, J. P; Prud homme, R; Rondi, A; Roussel, M; Arun Surya (SPIE--The International Society for Optical Engineering, 2012-09)
    For information-rich direct images at high resolution, hypertelescopes combine light from a sparse array of many subapertures, using pupil densi cation. Among the possible architectures, the Arecibo-like spherical class has ...
  • Perspective of long baseline optical interferometry 
    Saha, S. K; Morel, S (Astronomical Society of India, 2000)
    This article is a sort of sequel of the earlier extensive review by Saha (1991a) where emphasis was laid down on the ground based single aperture, as well as on the working long baseline optical interferometers (LBI) ...
  • The rotating envelope of the hot star gamma Cassiopeiae resolved by optical interferometry 
    Mourard, D; Bosc, I; Labeyrie, A; Saha, S. K (Nature Publishing Group, 1989-11)
    CERTAIN hot stars, belonging to the Be class, may have an envelope of hydrogen gas, possibly in the form of a rotating disk or spheroidal shell. Other models involve elliptical rings or close binary systems where the Roche ...

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