3 papers
astro-ph.CO2026
Comparing Hemispheres: Anisotropy in the deceleration parameter
Mauricio Lopez-Hernandez, Josue De-Santiago
We present a hemispherical comparison analysis of the deceleration parameter using the Pantheon+ sample of Type Ia supernovae to test the isotropy of cosmic acceleration and…
astro-ph.CO2025
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…
astro-ph.CO2024
Is there a dynamical tendency in H0 with late time measurements?
Mauricio Lopez-Hernandez, Josue De-Santiago
The discrepancy between the Hubble constant values derived from early-time and late-time measurements, reaching up to , represents the most serious challenge in modern co…