Gravitational lensing signature of long cosmic strings

Andrew A. de Laix, Lawrence M. Krauss, Tanmay Vachaspati

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


The gravitational lensing by long, wiggly cosmic strings is shown to produce a large number of lensed images of a background source. In addition to pairs of images on either side of the string, a number of small images outline the string due to small-scale structure on the string. This image pattern could provide a highly distinctive signature of cosmic strings. Since the optical depth for multiple imaging of distant quasar sources by long strings may be comparable to that by galaxies, these image patterns should be clearly observable in the next generation of redshift surveys such as the Sloan digital sky survey.

Original languageEnglish (US)
Pages (from-to)1968-1971
Number of pages4
JournalPhysical Review Letters
Issue number11
StatePublished - Sep 15 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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