Abstract
We have discovered a decrement in the cosmic microwave background radiation towards a pair of z = 3.8 quasars. The magnitude of the decrement, -380±64 μJy in a 110″ x 175″ beam, is similar to those produced by rich galaxy clusters via the Sunyaev-Zel’dovich effect, but optical, infra-red and X-ray observations show no evidence for such a cluster at z < 1. Optical spectra show the quasars to be extremely similar, raising the possibility that they are lensed images of the same object; this is consistent with the high mass required to produce the decrement by either the Sunyaev-Zel’dovich or Rees-Sciama effects.
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References
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Jones, M.E. (1998). A High-Redshift Cluster Detected Via Its S-Z Effect. In: Bremer, M.N., Jackson, N., Pérez-Fournon, I. (eds) Observational Cosmology. Astrophysics and Space Science Library, vol 226. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5238-9_16
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DOI: https://doi.org/10.1007/978-94-011-5238-9_16
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