Computer Science – Performance
Scientific paper
Nov 1958
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1958rspsa.248..222b&link_type=abstract
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 248, Issue 1253, pp. 222-237
Computer Science
Performance
22
Scientific paper
An experimental intensity interferometer has been constructed with two searchlight mirrors and tested on Sirius. The correlation observed with the two mirrors close together was found to be in good agreement with that expected theoretically. This result supports the prediction, made in part III of the present series, that the performance of an intensity interferometer should not be significantly affected by atmospheric scintillation. Observations of Sirius were carried out with four different baselines and the decrease of correlation with increasing baseline length was found to be consistent with theory. The observed results have been used to derive an experimental value for the angular diameter of Sirius which is in good agreement with the value given by astrophysical theory. The results of this preliminary experiment confirm, to a considerable extent, the general conclusions reached in part III.
Brown Robert Hanbury
Twiss R. Q.
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