New Global VLBI observations of the gravitational lensing system MG J0414+0534

Details New Global VLBI observations of the gravitational lensing system MG J0414+0534 New Global VLBI observations of the gravitational lensing system MG J0414+0534

2010-11-30

arxiv.org/abs/1011.6652v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

submitted to the proceedings of 10th European-VLBI network Symposium. 6 pages, 1 figure

Scientific paper

The gravitational lens system MG J0414+0534 is formed by an elliptical galaxy at redshift ~0.96 and a quasar at z~2.64. The system geometry is typical of lensing by an elliptical galaxy with the QSO close to and inside a fold caustic. It shows 4 images of the background source, and a partial Einstein ring is visible at optical wavelengths. It was observed with a global-VLBI array at 18 cm in June 2008. We present here the imaging results and a preliminary lens model constrained by these observations.

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