New approach to stellar interferometry based on spatial-coherence spectroscopy

Details New approach to stellar interferometry based on spatial-coherence spectroscopy New approach to stellar interferometry based on spatial-coherence spectroscopy

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3729..349k&link_type=abstract

Proc. SPIE Vol. 3729, p. 349-358, Selected Papers from International Conference on Optics and Optoelectronics '98, Kehar Singh;

Physics

Optics

Scientific paper

A new method is proposed for determining the coherence properties of the wave fields, produced by a broadband source, from the spectral changes produced an interference. The knowledge of spectral degree of coherence obtained experimentally combined with the space-frequency equivalence principle is used to determine the angular diameters of stars which is the source of the field. This is the first experiment which shows the application of spatial coherence spectroscopy in astronomy.

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