The differential speckle interferometer.

Details The differential speckle interferometer. The differential speckle interferometer.

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..445..462b&link_type=abstract

Instrumentation in astronomy V, p. 462 - 468

Astronomy and Astrophysics

Astronomy

6

Speckle Interferometry

Scientific paper

The authors describe a new technique called "Differential Speckle Interferometry" (DSI) which uses simultaneous narrow band images of astronomical objects to study their structure. Simultaneous specklegrams of red supergiant and giant stars taken in the hydrogen lines and in the nearby continuum allow to reconstruct the image of the extended chromospheres of these stars at resolutions of 100 nanoradians and better. The authors describe the instrumentation, analysis techniques, and results related to DSI.

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