Quadruply-imaged quasars: some general features

  title={Quadruply-imaged quasars: some general features},
  author={P. Tuan-Anh and T. T. Thai and N. A. Tuan and P. Darriulat and P. Diep and D. T. Hoai and N. B. Ngoc and P. T. Nhung and N. T. Phuong},
  journal={arXiv: Astrophysics of Galaxies},
Gravitational lensing of point sources located inside the lens caustic is known to produce four images in a configuration closely related to the source position. We study this relation in the particular case of a sample of quadruply-imaged quasars observed by the Hubble Space Telescope (HST). Strong correlations between the parameters defining the image configuration are revealed. The relation between the image configuration and the source position is studied. Some simple features of the… Expand


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