Strong lensing in the Einstein–Straus solution |
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| Authors: | Thomas Schücker |
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| Institution: | (1) Université de Provence, Marseille, France;(2) Centre de Physique Théorique, CNRS-Luminy, Case 907, 13288 Marseille Cedex 9, France;(3) Laboratoire affilié à la FRUMAM (FR 2291), Unité Mixte de Recherche (UMR 6207) du CNRS et des Universités Aix–Marseille 1 et 2 et Sud Toulon-Var, Marseille, France |
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| Abstract: | We analyse strong lensing in the Einstein–Straus solution with positive cosmological constant. Our result confirms Rindler
and Ishak’s finding that a positive cosmological constant decreases the bending of light by an isolated spherical mass. In
agreement with an analysis by Ishak et al., this decrease is found to be attenuated by a homogeneous mass distribution added
around the spherical mass and by a recession of the observer. For concreteness we compare the theory to the light deflection
of the lensed quasar SDSS J1004+4112.
To the memory of Jürgen Ehlers. |
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| Keywords: | Cosmological parameters Lensing |
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