255 citations · 700 across the 13 of their papers we have counts for
8 papers · 1 filter
High Redshift CDM Cosmology: To Bin or not to Bin?
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Rance Solomon
We construct observational Hubble and angular diameter distance mock data with baseline Planck CDM input values, before fitting the CDM model to study evolu…
Inevitable manifestation of wiggles in the expansion of the late Universe
Ozgur Akarsu, Eoin O. Colgain, Emre Ozulker +2
Using the fact that the comoving angular diameter distance to the last scattering surface is strictly constrained almost model independently, we show that, for any model agreeing w…
Is the Observable Universe Consistent with the Cosmological Principle?
Pavan Kumar Aluri, Paolo Cea, Pravabati Chingangbam +20
The Cosmological Principle (CP) -- the notion that the Universe is spatially isotropic and homogeneous on large scales -- underlies a century of progress in cosmology. It is conven…
Putting Flat CDM In The (Redshift) Bin
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Rance Solomon +2
Flat CDM cosmology is specified by two constant fitting parameters at the background level in the late Universe, the Hubble constant and matter density (today) . Math…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…
Quasar standardization: Overcoming Selection Biases and Redshift Evolution
Maria Giovanna Dainotti, Giada Bardiacchi, Aleksander Lukasz Lenart +5
Quasars (QSOs) are extremely luminous active galatic nuclei currently observed up to redshift . As such, they have the potential to be the next rung of the cosmic distance…
Probing the Anisotropic Universe with Gravitational Waves
Eoin Ó Colgáin
Modern cosmology rests on the working assumption that the Universe is isotropic and homogeneous at large scales. Here, we document a number of anomalous observations pointing to an…
Revealing Intrinsic Flat CDM Biases with Standardizable Candles
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Rance Solomon +4
Emerging high redshift cosmological probes, in particular quasars (QSOs), show a preference for larger matter densities, , within the flat CDM framework. Here,…