CSL-1: chance projection effect or serendipitous discovery of a gravitational lens induced by a cosmic string?

@article{Sazhin2003CSL1CP,
  title={CSL-1: chance projection effect or serendipitous discovery of a gravitational lens induced by a cosmic string?},
  author={M. Sazhin and G. Longo and J. Alcal{\'a} and R. Silvotti and G. Covone and O. S. Khovanskaya and M. Pavlov and M. Pannella and M. Radovich and V. Testa},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2003},
  volume={343},
  pages={353-359}
}
  • M. Sazhin, G. Longo, +7 authors V. Testa
  • Published 2003
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • CSL-1 (Capodimonte–Sternberg–Lens Candidate, No.1) is an extragalactic double source detected in the OACDF (Osservatorio Astronomico di Capodimonte - Deep Field). It can be interpreted either as the chance alignment of two identical galaxies at z = 0.46 or as the first case of gravitational lensing by a cosmic string. Extensive modeling shows in fact that cosmic strings are the only type of lens which (at least at low angular resolution) can produce undistorted double images of a background… CONTINUE READING
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