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VLBI imaging of the gravitational lens MG J0414+0534

Bibcode
2000A&A...362..845R
Ros, E.; Guirado, J. C.; Marcaide, J. M.; Pérez-Torres, M. A.; Falco, E. E.; Muñoz, J. A.; Alberdi, A.; Lara, L.
Referencia bibliográfica

Astronomy and Astrophysics, v.362, p.845-850 (2000)

Fecha de publicación:
10
2000
Revista
Astronomy and Astrophysics
Número de autores
8
Número de autores del IAC
1
Número de citas
48
Número de citas referidas
43
Descripción
We observed the quadruple gravitationally lensed image of MG J0414+0534 on 23 November 1997 with a global VLBI array at 8.4 GHz. We report wide-field imaging results of its four components at submilliarcsecond resolution, displaying complex core-like and jet-like extended structures. A simple model combining a singular isothermal ellipsoid to represent the main lens galaxy, external shear, and a singular isothermal sphere to represent an additional, nearby object accounts well for the core positions and flux densities of the VLBI images. This model predicts delays between the different lensed images of several weeks.
Tipo
Con árbitro
Técnicas
Galaxias
Chorros
Cuásares
Cosmología
Lente gravitacional

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