Interferometry and Aperture Synthesis

  • Edward B. Fomalont
  • Melvyn C. H. Wright


The resolution of a telescope has a diffraction limit of ∼λ/D, where λ is the observing wavelength and D is the aperture diameter. The resolution of large optical telescopes is limited to about a half arc second by atmospheric fluctuations, although the diffraction limit is much smaller. However, for radio frequencies a diffraction limit of about 1 arc minute at the highest radio frequencies is currently reached using filled-aperture telescopes. Further significant increase of the resolution of filled-aperture telescopes is not likely.


Visibility Function Radio Source Brightness Distribution Sidelobe Level Phase Jump 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag New York Inc. 1974

Authors and Affiliations

  • Edward B. Fomalont
  • Melvyn C. H. Wright

There are no affiliations available

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