VLBI imaging of the gravitational lenses B1422+231 and MGJ0414+0534

A. Alberdi (6); Bologna; Bonn; Cambridge; E.E. Falco (4); E. Ros (1); Germany; (2)Dep. Astronomy; Granada; Italy; (4) Harvard-CfA; J.A. Munoz (5)

arxiv: astro-ph/0010650 · v1 · submitted 2000-10-31 · 🌌 astro-ph

VLBI imaging of the gravitational lenses B1422+231 and MGJ0414+0534

E. Ros (1) , J.C. Guirado (2) , J.M. Marcaide (2) , M.A. Perez-Torres (3) , E.E. Falco (4) , J.A. Munoz (5) , A. Alberdi (6) , L. Lara (6) ((1) MPIfR

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Bonn Germany; (2)Dep. Astronomy U. Valencia Spain; (3) IRA/CNR Bologna Italy; (4) Harvard-CfA Cambridge US; (5) IAC La Laguna Spain; (6)IAA/CSIC Granada Spain)

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keywords imagesmgj0414vlbib1422galaxygravitationalisothermallens

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We present wide-field images of the quadruple gravitational lenses B1422+231 and MGJ0414+0534 obtained from global Very Long Baseline Interferometry (VLBI) observations at 8.4 GHz on 23 November 1997. We present also a lens model for MGJ0414+0534, which reproduces the core positions and flux densities of the VLBI images, combining a singular isothermal ellipsoid with external shear, and a singular isothermal sphere to represent, respectively, the main lens galaxy and its neighbor, a faint galaxy near one of the images.

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VLBI imaging of the gravitational lenses B1422+231 and MGJ0414+0534

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