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Flux variations of QSO 0957 + 561 A, B and image splitting by stars near the light path

Nature volume 282, pages 561–564 (1979)Cite this article

Abstract

If the double QSO 0957 + 561 A, B is the result of gravitational lens actions by a massive galaxy, stars in its outer parts and close to the light paths may cause significant flux changes in one year. One star can split a QSO image into two to four images with angular separations of ∼10−5 arc s.

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Authors and Affiliations

  1. Hamburger Sternwarte, Gojenbergsweg 112, D-2050, Hamburg, 80, FRG

    K. Chang & S. Refsdal

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  1. K. Chang
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  2. S. Refsdal
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Chang, K., Refsdal, S. Flux variations of QSO 0957 + 561 A, B and image splitting by stars near the light path. Nature 282, 561–564 (1979). https://doi.org/10.1038/282561a0

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