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Proceedings Paper

The Differential Speckle Interferometer
Author(s): Jacques M Beckers; Keith Hege; Patrick Murphy
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Paper Abstract

We 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 us to reconstruct the image of the extended chromospheres of these stars at resolutions of 100 nanoradians and better. We describe the instrumentation, analysis techniques, and results related to DSI.

Paper Details

Date Published: 9 January 1984
PDF: 7 pages
Proc. SPIE 0445, Instrumentation in Astronomy V, (9 January 1984); doi: 10.1117/12.966177
Show Author Affiliations
Jacques M Beckers, Multiple Mirror Telescope Observatory (United States)
Keith Hege, University of. Arizona (United States)
Patrick Murphy, University of. Arizona (United States)

Published in SPIE Proceedings Vol. 0445:
Instrumentation in Astronomy V
Alec Boksenberg; David L. Crawford, Editor(s)

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