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

doi:10.1088/0004-6256/139/5/1935

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

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1935-1941
Number of pages	7
Journal	Astronomical Journal
Volume	139
Issue number	5
DOIs	https://doi.org/10.1088/0004-6256/139/5/1935
Publication status	Published - May 2010

Keywords

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

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10.1088/0004-6256/139/5/1935

Cite this

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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.",

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AU - Surdej, J.

AU - Delacroix, C.

AU - Coleman, P.

AU - Dominik, Martin

AU - Habraken, S.

AU - Hanot, C.

AU - Le Coroller, H.

AU - Mawet, D.

AU - Quintana, H.

AU - Sadibekova, T.

AU - Sluse, D.

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KW - methods: laboratory

KW - quasars: general

KW - techniques: high angular resolution

KW - MAXIMUM-ENTROPY METHOD

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KW - RECONSTRUCTION

KW - NEBULAE

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THE OPTIMAL GRAVITATIONAL LENS TELESCOPE

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Keywords

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