20 citations · 116 across the 28 of their papers we have counts for
10 papers · 1 filter
Prospects for measuring the Doppler magnification dipole with LSST and DESI
Isabelle Ye, Philip Bull, Caroline Guandalin +2
We forecast the detectability of the Doppler magnification dipole with a joint analysis of galaxy spectroscopic redshifts and size measurements. The Doppler magnification arises fr…
Unbiased analysis of primordial non-Gaussianity: the multipoles of the full relativistic power spectrum
Chris Addis, Sêcloka L. Guedezounme, Jessie Hammond +5
A major goal of ongoing and future cosmological surveys of the large-scale structure is to measure local type primordial non-Gaussianity in the galaxy power spectrum through the sc…
Calibration-independent consistency test of DESI DR2 BAO and SNIa
Bikash R. Dinda, Roy Maartens, Chris Clarkson
We investigate the consistency between DESI DR2 BAO and three SNIa datasets, Pantheon+, Union3, and DES-Y5. Our consistency test is {calibration}-independent since it is independen…
Transverse Velocities in Real-Time Cosmology: Position Drift in Relativistic N-Body Simulations
Alexander Oestreicher, Chris Clarkson, Julian Adamek +1
The era of real-time cosmology has begun. It is now possible to directly measure the apparent drift of high-redshift astronomical sources across the sky . Th…
Covariant cosmography in the presence of local structures: comparing exact solutions and perturbation theory
Maharshi Sarma, Christian Marinoni, Basheer Kalbouneh +2
Recent observational evidence of axially symmetric anisotropies in the local cosmic expansion rate motivates an investigation of whether they can be accounted for within the Lemaît…
The anisotropic expansion rate of the local Universe and its covariant cosmographic interpretation
Basheer Kalbouneh, Christian Marinoni, Roy Maartens +5
Without making any assumption on the underlying geometry and metric of the local Universe, we provide a measurement of the expansion rate fluctuation field using the Cosmicflows-4…
Probing the Cosmological Principle with CMB lensing and cosmic shear
James Adam, Roy Maartens, Julien Larena +2
The standard cosmological model assumes the Cosmological Principle. However, recent observations hint at possible violations of isotropy on large scales, possibly through late-time…
Visualising relativistic effects in redshift space distortions of large scale structure
Pritha Paul, Chris Clarkson
Observing large scale structure in redshift space gives rise to the well known redshift space distortions whereby a spherical distribution of galaxies is distorted into an ellipsoi…
Redshift Drift in Relativistic N-Body Simulations
Alexander Oestreicher, Chris Clarkson, Julian Adamek +1
The cosmological redshift drift promises to be the first observable directly measuring the evolution of the cosmic expansion rate and should be detectable with upcoming surveys by…
Improved null tests of CDM and FLRW in light of DESI DR2
Bikash R. Dinda, Roy Maartens, Shun Saito +1
The DESI DR2 BAO data, in combination with CMB and different SNIa datasets, exclude the flat CDM model at more than 2.5 when analyzed through the CDM parametrization…