3 papers
astro-ph.CO2025
A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant
L. R. Colaço, R. F. L. Holanda, Z. C. Santana +1
We present a cosmological model-independent determination of the Hubble constant, , by combining time-delay measurements from seven TDCOSMO systems, Einstein radius measuremen…
astro-ph.CO2025
A Hubble Constant Determination Through Quasar Time Delays and Type Ia Supernovae
L. R. Colaço
This paper presents a new model-independent constraint on the Hubble constant () by anchoring relative distances from Type Ia supernovae (SNe Ia) observations to absolute dist…
astro-ph.CO2024
Non-parametric reconstruction of the fine structure constant with galaxy clusters
Marcelo Ferreira, Rodrigo F. L. Holanda, Javier E. Gonzalez +2
Testing possible variations in fundamental constants of nature is a crucial endeavor in observational cosmology. This paper investigates potential cosmological variations in the fi…