Probing the primordial Universe with MeerKAT and DES

José Fonseca, Roy Maartens, Mário G. Santos

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Abstract

It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and the Dark Energy Survey (DES), can be combined using the multi-tracer technique to deliver an accuracy on measurement of NL that is up to three times better than Planck.
Original languageEnglish
Pages (from-to)2780-2786
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume466
Issue number3
Early online date13 Dec 2016
DOIs
Publication statusPublished - Apr 2017

Keywords

  • astro-ph.CO
  • RCUK
  • STFC
  • ST/N000668/1
  • cosmology: large-scale structure of the Universe

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