Abstract
EARLIER I reported some experiments in which interference phenomena produced by different parts of the diffraction image of a telescope were examined1–3. It has been shown3 that by observing the Airy disk in this way, by means of interference it is possible to resolve finer details in an image than can be recorded from the intensity distribution only. I believe that the same principle may prove of value for increasing the resolving power of a spectrograph.
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References
Öhman, Y., Astrophysica Norvegica, 9, 7 (1964).
Öhman, Y., Atti del Convegno sui campi magnetici solari, Roma 14–16, September 1964 (in the press).
Öhman, Y., Applied Optics (in the press), see also E.S.R.O. Symp., Nice (June 14–15, 1965).
Unsöld, A., Phys. der Sternatmosphären, 252 (Berlin, 1955).
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ÖHMAN, Y. A Suggested Method for Increasing the Resolving Power of a Spectrograph. Nature 207, 1284–1285 (1965). https://doi.org/10.1038/2071284a0
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DOI: https://doi.org/10.1038/2071284a0
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