10 papers
Testing a Sign-Switch Cosmological Model with Curvature through Latest Planck 2018, DESI DR2 and PantheonPlus\&SH0ES Observational Data
Archana Dixit, Manish Yadav, Anirudh Pradhan +1
We investigate the spatial geometry of the Universe within the framework of a sign-switch dark energy scenario by extending the recently proposed CDM model to include a…
Alleviating the Hubble Tension with Logarithmic Dark Energy: Constraints on the CDM Model
Saurabh Verma, Archana Dixit, Anirudh Pradhan +1
Observational constraints are considered on a CDM model of the dark energy equation of state, , using…
Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations
Archana Dixit, Saurabh Verma, Anirudh Pradhan +1
This study investigates and compares two prominent two-dimensional dark energy (DE) parameterizations: Barboza-Alcaniz (BA) and Logarithmic forms by comparing them with a comprehen…
Dynamical Dark Energy Signatures from a New Transition Parametrization in Flat FLRW Cosmology
Manish Yadav, Archana Dixit, Anirudh Pradhan +1
We investigate a cosmic scenario using a new transition parameterization of the diagnostic, , in the spatially flat Friedmann Lemaître Roberts…
Dynamical Oscillations in Dark Energy: Joint Constraints on the CDM Model from DESI, OHD, and Supernova Samples
Manish Yadav, Archana Dixit, M. S. Barak +1
In this study, we investigate the oscillatory dark energy model based on the DESI BAO data together with OHD, Pantheon Plus, and SH0ES measurements. We exami…
Constraints on Spatial Curvature and Dark Energy Dynamics in the CDM Model from DESI DR1 and DR2
Manish Yadav, Archana Dixit, M. S. Barak +1
In this study, we investigate the CDM dynamical dark energy model with spatial curvature utilizing the recently released DESI Collaboration data (DR1 and DR2) in conjunction wit…