Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Speckle interferometry on the 2.5 m Isaac Newton telescope

Not Accessible

Your library or personal account may give you access

Abstract

A speckle interferometer for use at the Cassegrain focus of large telescopes has been constructed and used to observe binary star systems on the 2.5 m Isaac Newton telescope in England. The instrument has a four-stage, magnetically focused EMI image intensifier with a maximum light gain in excess of 106, good resolution, and low background noise. The final images are recorded on 16mm cine film. Both analog optical and digital analyses have been carried out. The digital analysis enables the transfer function of the speckle method to be found and divided into the image power spectrum. Examples are given of experimental results. Binary star separations have been measured for stars as close as 0.1 arc sec and as faint as magnitude 6.

© 1976 Optical Society of America

Full Article  |  PDF Article
More Like This
Reconstructed images of Alpha Orionis using stellar speckle interferometry

Simon P. Worden, C. R. Lynds, and J. W. Harvey
J. Opt. Soc. Am. 66(11) 1243-1246 (1976)

Measurements of atmospheric isoplanatism using speckle interferometry*

P. Nisenson and R. V. Stachnik
J. Opt. Soc. Am. 68(2) 169-175 (1978)

Statistics of stellar speckle patterns

R. J. Scaddan and J. G. Walker
Appl. Opt. 17(23) 3779-3784 (1978)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved