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VOLUME 62 (1995) | ISSUE 10 | PAGE 765
Diffraction of light by a cosmic string
The light curve of a star due to the passage of a cosmic string between the star and the observer is obtained. In contrast to the microlensing by a point-like object, the light curve of a star due to a cosmic string depends on the wavelength. The mechanism proposed for the increase in the luminosity of a star could be responsible for some recently observed microlensing events. © 1995 American Institute of Physics.