Speckle Interferometry of
Close Visual Doubles

226 page book containing 21 papers

$49.95 - Hard Cover

Edited by
Russell Genet, Eric Weise, R. Kent Clark,
Vera Wallen
with Jolyon Johnson (editorial consultant)

L to R: Weise, Wallen, Johnson, Clark, Genet

Foreword by
David Rowe

Published by
The Collins Foundation Press

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Book Description


In 1970, Anton Labeyrie, a French astronomer, beat the seeing limit by taking hundreds of very short-exposure images of close binary stars with a high-speed film camera and processing these images in Fourier space. By circumventing the seeing limit, speckle interferometry made it possible to observe visual binaries with small separations. By the early 1980s, Harold McAlister, William Hartkopf, and their associates were making speckle interferometry observations of very close binaries on the 2.1- and 4.0-meter telescopes at Kitt Peak National Observatory with an intensified CCD camera connected to an Osborne portable computer. Long the province of professional astronomers on larger telescopes, Florent Losse, a French amateur astronomer, pioneered binary star speckle interferometry for smaller telescopes. Over the past three years, speckle observations of close visual binaries have been made by an eclectic group of student, amateur, and professional astronomers with a portable EMCCD-based speckle interferometry camera on two smaller telescopes and then on the 0.8- and 2.1-meter telescopes at Kitt Peak National Observatory. This group is also pursuing two advanced technologies: full automation to increase the quantity of observations in an economical manner, and masks adapted from exoplanet imaging to disperse the bright primary starlight away from “discovery zones” so that faint secondary stars can be detected.


About the Editors

Russell Genet, Research Scholar in Residence at California Polytechnic State University

Eric Weise, Graduate of University of California, San Diego - Physics and Math

R. Kent Clark, Emeritus Professor of Physics at University of South Alabama and
                         Editor of the Journal of Double Star Observations

Vera Wallen, Educational Consultant and Retired Superintendent of Schools

Editorial Consultant

Jolyon Johnson, Science Education and Science Director at the Orion Observatory

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