50 citations · 112 across the 7 of their papers we have counts for
7 papers · 1 filter
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…
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…
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)…
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…
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…
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…
Detection of the Intrinsic Spin Alignments in Isolated Spiral Pairs
Hanwool Koo, Jounghun Lee
An observational evidence for the intrinsic galaxy alignments in isolated spiral pairs is presented. From the catalog of the galaxy groups identified by Tempel et al. in the flux l…