"Interspectroscopy" le a method of ol,taining the separated spectra of binary (or multiple) stars too close to be resolved by conventional techniques. The method is "passive" because, like speckle interferometry, the atmosphere provides a series of random phase variations, and no control system is used to maintain phase. Results in terms of spectral purity are given for several cases in both the pupil and image planes. It is shown that significant spectral separation can occur. We briefly discuss planned observations with a fiber-fed pulse-counting spectrograph at the 1.9-m DDO telescope.

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); doi: 10.1117/12.19301

Published in SPIE Proceedings Vol. 1237:
Amplitude and Intensity Spatial Interferometry
James B. Breckinridge, Editor(s)