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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…
Anisotropy in the cosmic acceleration inferred from supernovae
Mohamed Rameez
Under the assumption that they are standard(isable) candles, the lightcurves of Type Ia supernovae have been analyzed in the framework of the standard Friedmann-Lemaître-Robertson-…
Anisotropy in Pantheon+ supernovae
Animesh Sah, Mohamed Rameez, Subir Sarkar +1
We employ Maximum Likelihood Estimators to examine the Pantheon+ catalogue of Type Ia supernovae for large scale anisotropies in the expansion rate of the Universe. The analyses ar…
A Challenge to the Standard Cosmological Model
Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez +2
We present the first joint analysis of catalogs of radio galaxies and quasars to determine if their sky distribution is consistent with the standard CDM model of cosmology. This…
Do supernovae indicate an accelerating universe?
Roya Mohayaee, Mohamed Rameez, Subir Sarkar
In the late 1990's, observations of 93 Type Ia supernovae were analysed in the framework of the FLRW cosmology assuming these to be `standard(isable) candles'. It was thus inferred…