Hubble imaging excludes cosmic string lens

  title={Hubble imaging excludes cosmic string lens},
  author={E. Agol and C. Hogan and R. Plotkin},
  journal={Physical Review D},
  • E. Agol, C. Hogan, R. Plotkin
  • Published 2006
  • Physics
  • Physical Review D
  • The galaxy image pair Capodimonte-Sternberg-Lens Candidate no. 1 (CSL-1) has been a leading candidate for a cosmic string lens. High quality imaging data from the Hubble Space Telescope presented here show that it is not a lens but a pair of galaxies. The galaxies show different orientations of their principal axes, not consistent with any lens model. We present a new direct test of the straight-string lens model, using a displaced difference of the image from itself to exclude CSL-1 at high… CONTINUE READING
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