255 citations · 995 across the 23 of their papers we have counts for
6 papers · 1 filter
On Larger Values in the CMB Dipole Direction
Orlando Luongo, Marco Muccino, Eoin Ó Colgáin +2
On the assumption that quasars (QSO) and gamma-ray bursts (GRB) represent \textit{standardisable candles}, we provide evidence that the Hubble constant adopts larger values i…
Hints of FLRW Breakdown from Supernovae
Chethan Krishnan, Roya Mohayaee, Eoin Ó Colgáin +2
A 10\% difference in the scale for the Hubble parameter constitutes a clear problem for cosmology. Here, considering angular distribution of Type Ia supernovae (SN) within the Pant…
Does Hubble Tension Signal a Breakdown in FLRW Cosmology?
Chethan Krishnan, Roya Mohayaee, Eoin Ó Colgáin +2
The tension between early and late Universe probes of the Hubble constant has motivated various new FLRW cosmologies. Here, we reanalyse the Hubble tension with a recent age of the…
A Dark Energy model from Generalized Proca Theory
Chao-Qiang Geng, Yan-Ting Hsu, Jhih-Rong Lu +1
We consider a specific dark energy model, which only includes the Lagrangian up to the cubic order in terms of the vector field self-interactions in the generalized Proca theory. W…
Can dark energy be dynamical?
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Lu Yin
We highlight shortcomings of the dynamical dark energy (DDE) paradigm. For parametric models with equation of state (EOS), for a given function of redshift…
Observational Constraints on the Cosmology with Holographic Dark Fluid
Da Huang, Bum-Hoon Lee, Gansukh Tumurtushaa +2
We consider the holographic Friedman-Robertson-Walker (hFRW) universe on the 4-dimensional membrane embedded in the 5-dimensional bulk spacetime and fit the parameters with the obs…