3 papers
astro-ph.CO2026
Constraining dark energy models using Jackknife and Bootstrap resampling
Roshna K, Nikhil Fernandes, P Praveen +1
Analyses of type Ia supernovae have helped us shed light on the existence and nature of dark energy. Most of these analyses have relied on Bayesian techniques. In this work, we emp…
astro-ph.CO2026
Power Suppression and Lensing Anomaly -- A phenomenological investigation
Roshna K, V. Sreenath
Primordial power spectra with low power at long wavelengths can alleviate lensing anomaly. However the extent to which data favours such a primordial spectra is not clear. In this…
astro-ph.CO2024
Viability of loop quantum cosmology at the level of bispectrum
Roshna K, V. Sreenath
Observations by Planck indicate that CMB anisotropies are consistent with predictions of nearly Gaussian primordial perturbations as the one generated in slow-roll inflation. On th…