Arc minute gravitational lenses and cosmic strings

Details Arc minute gravitational lenses and cosmic strings Arc minute gravitational lenses and cosmic strings

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.324..392b&link_type=abstract

Nature (ISSN 0028-0836), vol. 324, Nov. 27, 1986, p. 392; Reply, p. 393.

Astronomy and Astrophysics

Astronomy

1

Astronomical Models, Gravitational Lenses, String Theory, Cosmology, Gravitational Waves, Mass To Light Ratios, Nuclear Fusion, Quasars

Scientific paper

Paczynski's (1986) suggestion that several large separation gravitational lens candidates could be explained by the existence of cosmic strings received heightened attention when preliminary evidence for a gravitational lens with a 2.6 arcmin separation was published by Turner et al. (1986). It is argued here that such large separation lenses are not predicted by cosmic string theories. Paczynski replies that it is unlikely that cosmic strings could be discovered by finding pairs of images, and describes striking effects of string lensing which should be searched for observationally.

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