220 citations · 1.2k across the 39 of their papers we have counts for
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Local primordial non-Gaussianity in the relativistic galaxy bispectrum
Roy Maartens, Sheean Jolicoeur, Obinna Umeh +2
Next-generation galaxy and 21cm intensity mapping surveys will rely on a combination of the power spectrum and bispectrum for high-precision measurements of primordial non-Gaussian…
Optimal computation of anisotropic galaxy three point correlation function multipoles using 2DFFTLOG formalism
Obinna Umeh
We study two key issues militating against the use of the anisotropic three-point correlation function (3PCF) for cosmological parameter inference: difficulties with its computatio…
Testing the equivalence principle on cosmological scales using the odd multipoles of galaxy cross-power spectrum and bispectrum
Obinna Umeh, Kazuya Koyama, Robert Crittenden
One of the cornerstones of general relativity is the equivalence principle. However, the validity of the equivalence principle has only been established on solar system scales for…
Detecting the relativistic bispectrum in 21cm intensity maps
Sheean Jolicoeur, Roy Maartens, Eline M. De Weerd +3
We investigate the detectability of leading-order relativistic effects in the bispectrum of future 21cm intensity mapping surveys. The relativistic signal arises from Doppler and o…