275 citations · 2.8k across the 70 of their papers we have counts for
72 papers
Clustering properties of the CatWISE2020 quasar catalogue and their impact on the cosmic dipole anomaly
Sebastian von Hausegger, Nathan Secrest, Harry Desmond +3
The cosmic dipole anomaly -- the observation of a significant mismatch between the dipole observed in the matter distribution and that expected given the kinematic interpretation o…
Forty years of the Ellis-Baldwin test
Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez +2
Modern cosmology is built on the assumption that the Universe is homogeneous and isotropic on large scales - but this is challenged by results of the Ellis-Baldwin test that show a…
Displacement Field Analysis via Optimal Transport: Multi-Tracer Approach to Cosmological Reconstruction
Farnik Nikakhtar, Ravi K. Sheth, Nikhil Padmanabhan +2
We demonstrate the effectiveness of one of the many multi-tracer analyses enabled by Optimal Transport (OT) reconstruction. Leveraging a semi-discrete OT algorithm, we determine th…
Optimal Transport Reconstruction of Biased Tracers in Redshift Space
Farnik Nikakhtar, Nikhil Padmanabhan, Bruno Lévy +2
Recent research has emphasized the benefits of accurately reconstructing the initial Lagrangian positions of biased tracers from their positions at a later time, to gain cosmologic…
Distortions of the Hubble diagram: Line-of-sight signatures of local galaxy clusters
Jenny G. Sorce, Roya Mohayaee, Nabila Aghanim +2
The Universe expansion rate is modulated around local inhomogeneities due to their gravitational potential. Velocity waves are then observed around galaxy clusters in the Hubble di…
Galaxy number-count dipole and superhorizon fluctuations
Guillem Domènech, Roya Mohayaee, Subodh P. Patil +1
In view of the growing tension between the dipole anisotropy of number counts of cosmologically distant sources and of the cosmic microwave background (CMB), we investigate the num…