Article (Scientific journals)
The Optimal Gravitational Lens Telescope
Surdej, Jean; Delacroix, Christian; Coleman, P. et al.
2010In Astronomical Journal, 139, p. 1935-1941
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Keywords :
cosmic mirage; gravitational lens; lens inversion; multiply imaged quasars
Abstract :
[en] 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.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Delacroix, Christian  ;  Université de Liège - ULiège > Département de physique > Optique - Hololab
Coleman, P.
Dominik, M.
Habraken, Serge ;  Université de Liège - ULiège > Département de physique > Optique - Hololab - CSL (Centre Spatial de Liège)
Hanot, Charles ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Le Coroller, H.
Mawet, D.
Quintana, H.
Sadibekova, Tatyana ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Sluse, Dominique  
Language :
English
Title :
The Optimal Gravitational Lens Telescope
Publication date :
08 April 2010
Journal title :
Astronomical Journal
ISSN :
0004-6256
eISSN :
1538-3881
Publisher :
Univ Chicago Press, Chicago, United States - Illinois
Volume :
139
Pages :
1935-1941
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 February 2010

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