14 citations · 24 across the 8 of their papers we have counts for
8 papers
Impact of CMB low- EE polarization data on dark energy parameterizations
Shubham Barua, Shantanu Desai
Measurement of the optical depth to reionization () is largely driven by the large-scale EE polarization data of CMB (). Removing the low- EE data p…
Probing cosmic anisotropy with galaxy clusters and supernovae
Shubham Barua, Sujit K. Dalui, Shantanu Desai
Using CDM and Padé-(2,1) cosmography, we study directional variations in the Hubble constant, , using galaxy cluster and Type Ia Supernovae (from Pantheon Plus) by the hemi…
Testing the cosmic distance duality relation using model-independent approach
Shubham Barua, Sujit K. Dalui, Rikiya Okazaki +1
In this work, we test the cosmic distance duality relation (CDDR) using the arbitrary redshift pivot Padé-(2,1) expansion methodology developed in arXiv:2509.16196. This approach a…
Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model
Shubham Barua, Shantanu Desai
Recent DESI results indicate a strong preference for dynamical dark energy (DE) when baryon acoustic oscillation (BAO) measurements are combined with supernovae (SNe) and cosmic mi…
On frequentist confidence intervals in a non-Gaussian regime
Shubham Barua, Shantanu Desai, Mauricio Lopez-Hernandez +1
We study frequentist confidence intervals based on graphical profile likelihoods (Wilks' theorem, likelihood integration), and the Feldman-Cousins (FC) prescription, a generalisati…
Constraints on Dark Energy Models Using Late Universe Probes
Shubham Barua, Shantanu Desai
We use late Universe probes - Type Ia Supernovae from the PantheonPlus compilation, Quasars, and Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1) BAO data - along w…
Determination of Hubble constant from Megamaser Cosmology Project using Profile Likelihood
Shubham Barua, Vyaas Ramakrishnan, Shantanu Desai
The Megamaser Cosmology Project inferred a value for the Hubble constant given by km/sec/Mpc. This value was obtained using Bayesian inference by marginalizing…
Effect of Peak Absolute Magnitude of Type Ia Supernovae and Sound Horizon Values on Hubble Tension using DESI results
Shubham Barua, Shantanu Desai
We apply data-motivated priors on the peak absolute magnitude of Type Ia supernovae () and the sound horizon at the drag epoch (), to study how the degeneracy affec…