THE OPTIMAL GRAVITATIONAL LENS TELESCOPE

J. Surdej, C. Delacroix, P. Coleman, Martin Dominik, S. Habraken, C. Hanot, H. Le Coroller, D. Mawet, H. Quintana, T. Sadibekova, D. Sluse

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Given an observed gravitational lens mirage produced by a foreground deflector (cf. galaxy, quasar, cluster,...), it is possible via numerical lens inversion to retrieve the real source image, taking full advantage of the magnifying power of the cosmic lens. This has been achieved in the past for several remarkable gravitational lens systems. Instead, we propose here to invert an observed multiply imaged source directly at the telescope using an ad hoc optical instrument which is described in the present paper. Compared to the previous method, this should allow one to detect fainter source features as well as to use such an optimal gravitational lens telescope to explore even fainter objects located behind and near the lens. Laboratory and numerical experiments illustrate this new approach.

Original languageEnglish
Pages (from-to)1935-1941
Number of pages7
JournalAstronomical Journal
Volume139
Issue number5
DOIs
Publication statusPublished - May 2010

Keywords

  • gravitational lensing: strong
  • methods: laboratory
  • quasars: general
  • techniques: high angular resolution
  • MAXIMUM-ENTROPY METHOD
  • INVERSION
  • RECONSTRUCTION
  • NEBULAE

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