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New results on Abell 963 and MG1131+0456

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Gravitational Lenses

Part of the book series: Lecture Notes in Physics ((LNP,volume 406))

Abstract

Two well-known gravitational lensing events are here examined: the two giant arcs in Abell 963 and the radio ring MG 1131+0456. For the first case, the results obtained by numerical model are explained. There is at least three times more non-luminous mass than luminous one acting as lensing matter. The source seems to be a dwarf galaxy spiral or an irregular.

For the radio ring, new optical observations have been made at ESO/NTT. The imaging shows an extended structure which feature looks strangely like the one of the radio component. The same numerical model that explain the radio structure has been used successfully to re-build the source. At last, spectroscopic study of this object present a lack of emission lines from the source and a possible redshift of the deflector at z = 0.83.

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Rainer Kayser Thomas Schramm Lars Nieser

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© 1992 Springer-Verlag

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Angonin, MC., Hammer, F., Lefevre, O. (1992). New results on Abell 963 and MG1131+0456. In: Kayser, R., Schramm, T., Nieser, L. (eds) Gravitational Lenses. Lecture Notes in Physics, vol 406. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-55797-0_116

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  • DOI: https://doi.org/10.1007/3-540-55797-0_116

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-55797-5

  • Online ISBN: 978-3-540-47286-5

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