The ISW imprints of voids and superclusters on the CMB

S. Hotchkiss*, S. Nadathur, S. Gottlöber, I. T. Iliev, A. Knebe, W. A. Watson, G. Yepes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We examine the stacked integrated Sachs-Wolfe (ISW) imprints on the CMB along the lines of sight of voids and superclusters in galaxy surveys, using the Jubilee ISW simulation and mock luminous red galaxy (LRG) catalogues. We show that the expected signal in the concordance CDM model is much smaller than the primary anisotropies arising at the last scattering surface and therefore any currently claimed detections of such an imprint cannot be caused by the ISW effect in CDM. We look for the existence of such a signal in the Planck CMB using a catalogue of voids and superclusters from the Sloan Digital Sky Survey (SDSS), but find a result completely consistent with CDM - i.e., a null detection.

Original languageEnglish
Pages (from-to)580-584
Number of pages5
JournalProceedings of the International Astronomical Union
Issue number308
Publication statusPublished - 1 Jun 2014


  • cosmology: cosmic microwave background
  • dark energy
  • large-scale structure of Universe
  • methods: data analysis
  • methods: numerical


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