activity
20172024
most citedTesting the Mutual Consistency of the Pantheon and SDSS/eBOSS BAO Data Sets with Gaussian Processes

50 citations · 112 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.CO2024★ 7 cited

Litmus tests of the flat CDM model and model-independent measurement of with LSST and DESI

Benjamin L'Huillier, Ayan Mitra, Arman Shafieloo +2

In this analysis we apply a model-independent framework to test the flat CDM cosmology using simulated SNIa data from the upcoming Legacy Survey of Space and Time (LSST) and com…

astro-ph.CO2021

Bayesian vs Frequentist: Comparing Bayesian model selection with a frequentist approach using the iterative smoothing method

Hanwool Koo, Ryan E. Keeley, Arman Shafieloo +1

We have developed a frequentist approach for model selection which determines the consistency between any cosmological model and the data using the distribution of likelihoods from…

astro-ph.CO2020★ 24 cited

Hints for possible low redshift oscillation around the best fit CDM model in the expansion history of the Universe

L. Kazantzidis, H. Koo, S. Nesseris +2

We search for possible deviations from the expectations of the concordance CDM model in the expansion history of the Universe by analysing the Pantheon Type Ia Supernovae (SnIa)…

astro-ph.CO2020★ 50 cited

Testing the Mutual Consistency of the Pantheon and SDSS/eBOSS BAO Data Sets with Gaussian Processes

Ryan E. Keeley, Arman Shafieloo, Gong-Bo Zhao +2

We test the mutual consistency between the baryon acoustic oscillation measurements from the eBOSS SDSS final release, as well as the Pantheon supernova compilation in a model inde…

astro-ph.CO2020★ 9 cited

Model selection and parameter estimation using the iterative smoothing method

Hanwool Koo, Arman Shafieloo, Ryan E. Keeley +1

We compute the distribution of likelihoods from the non-parametric iterative smoothing method over a set of mock Pantheon-like type Ia supernova datasets. We use this likelihood di…

astro-ph.CO2020★ 18 cited

Model-independent constraints on Type Ia supernova light-curve hyper-parameters and reconstructions of the expansion history of the Universe

Hanwool Koo, Arman Shafieloo, Ryan E. Keeley +1

We reconstruct the expansion history of the Universe using type Ia supernovae (SN Ia) in a manner independent of any cosmological model assumptions. To do so, we implement a non-pa…