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

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

2000-10-31

arxiv.org/abs/astro-ph/0010650v1

Astronomy and Astrophysics

Astrophysics

Proceedings of the 4th Scientific Meeting of the Spanish Astronomical Society, Zamorano J., Gorgas J., Gallego J. (eds.), Astr

Scientific paper

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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