163 citations · 1.2k across the 42 of their papers we have counts for
6 papers · 1 filter
An Analysis of Variance of the Pantheon+ Dataset: Systematics in the Covariance Matrix?
Ryan Keeley, Arman Shafieloo, Benjamin L'Huillier
We investigate the statistics of the available Pantheon+ dataset. Noticing that the value for the best-fit CDM model to the real data is small, we quantify how significant…
Report of the Topical Group on Cosmic Probes of Fundamental Physics for for Snowmass 2021
Rana X. Adhikari, Luis A. Anchordoqui, Ke Fang +118
Cosmic Probes of Fundamental Physics take two primary forms: Very high energy particles (cosmic rays, neutrinos, and gamma rays) and gravitational waves. Already today, these probe…
Early or phantom dark energy, self-interacting, extra, or massive neutrinos, primordial magnetic fields, or a curved universe: An exploration of possible solutions to the and problems
Helena García Escudero, Jui-Lin Kuo, Ryan E. Keeley +1
In this paper we explore the existing tensions in the local cosmological expansion rate, , and amplitude of the clustering of large-scale structure at …
How to use GP: Effects of the mean function and hyperparameter selection on Gaussian Process regression
Seung-gyu Hwang, Benjamin L'Huillier, Ryan E. Keeley +2
Gaussian processes have been widely used in cosmology to reconstruct cosmological quantities in a model-independent way. However, the validity of the adopted mean function and hype…
Ruling Out New Physics at Low Redshift as a solution to the Tension
Ryan E. Keeley, Arman Shafieloo
We make the case that there can be no low-redshift solution to the tension. To robustly answer this question, we use a very flexible parameterization for the dark energy equa…
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…