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DIFFERENTIAL SPECKLE IMAGING WITH THE COPHASED MULTIPLE MIRROR TELESCOPE.

Hebden, JC; Hege, EK; Beckers, JM; (1986) DIFFERENTIAL SPECKLE IMAGING WITH THE COPHASED MULTIPLE MIRROR TELESCOPE. Optical Engineering , 25 (6) pp. 712-715.

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Abstract

Differential speckle interferometry has been applied to data obtained using the fully phased six-mirror aperture of the Multiple Mirror Telescope. Wavelength-dependent differences in the appearance of a stellar object are derived from simultaneous observations at two distinct wavebands. The supergiant stat Alpha Orionis was observed this way to investigate its appearance in hydrogen-alpha emission. Data reduction consists of a frame-by-frame weighted deconvolution. An inherent Wiener-type filtering must be removed in order to preserve high spatial frequency information. Results for Alpha Orionis are compared to similar results for the unresolved source Gamma Orionis.

Type: Article
Title: DIFFERENTIAL SPECKLE IMAGING WITH THE COPHASED MULTIPLE MIRROR TELESCOPE.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1550450
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