871 citations · 18.5k across the 224 of their papers we have counts for
226 papers
Apparent parity violation in the observed galaxy trispectrum
Pritha Paul, Chris Clarkson, Roy Maartens
Recent measurements of the 4-point correlation function in large-scale galaxy surveys have found apparent evidence of parity violation in the distribution of galaxies. This cannot…
Multi-tracing the primordial Universe with future surveys
Mponeng Kopana, Sheean Jolicoeur, Roy Maartens
The fluctuations generated by Inflation are nearly Gaussian in the simplest models, but may be non-Gaussian in more complex models, potentially leading to signatures in the late Un…
Covariant cosmography: the observer-dependence of the Hubble parameter
Roy Maartens, Jessica Santiago, Chris Clarkson +2
The disagreement between low- and high-redshift measurements of the Hubble parameter is emerging as a serious challenge to the standard model of cosmology. We develop a covariant c…
Constraining the growth rate on linear scales by combining SKAO and DESI surveys
Simthembile Dlamini, Sheean Jolicoeur, Roy Maartens
In the pursuit of understanding the large-scale structure of the Universe, the synergy between complementary cosmological surveys has proven to be a powerful tool. Using multiple t…
A wide-angle formulation of foreground filters for HI intensity mapping
Rahul Kothari, Roy Maartens
Neutral hydrogen intensity mapping can in principle deliver rapid and large-volume cosmological surveys with exquisitely accurate redshifts that are determined directly from imagin…
Radio-optical synergies at high redshift to constrain primordial non-Gaussianity
Matilde Barberi Squarotti, Stefano Camera, Roy Maartens
We apply the multi-tracer technique to test the possibility of improved constraints on the amplitude of local primordial non-Gaussianity, , in the cosmic large-sca…