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Gravitational lensing of BL Lac objects and related AGN

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Gravitational Lenses

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

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Abstract

The observational evidence for foreground galaxies along the line-of-sight to several high redshift BL Lac objects is summarized with special emphasis on the case of 0235+164. Indirect evidence for intervening galaxies is also described for the highly variable quasars 1641+399 and 1253-055. A reconstructed artificial spectrum of a ‘ensed’ nearby BL Lac object suggests that the emission lines of a possible background quasar may be difficult to detect in these low redshift objects.

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Authors and Affiliations

  1. Max-Planck-Institut für Astronomie, Königstuhl 17, D-6900, Heidelberg l, Germany

    Manfred Stickel

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  1. Manfred Stickel
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Editor information

Rainer Kayser Thomas Schramm Lars Nieser

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© 1992 Springer-Verlag

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Stickel, M. (1992). Gravitational lensing of BL Lac objects and related AGN. 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_119

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  • DOI: https://doi.org/10.1007/3-540-55797-0_119

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-55797-5

  • Online ISBN: 978-3-540-47286-5

  • eBook Packages: Springer Book Archive

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