Z. C. Santana

activity

20242026

collaborators

3 papers

astro-ph.CO2026

Tracing the Evolution of $I^c ◯_{m} (z)$ over the Last 10 Billion Years with Non-parametric Methods

R. F. L. Holanda, J. F. Jesus, Z. C. Santana +1

We investigate the redshift evolution of the matter density parameter, $I^c ◯_{m} (z)$ , using galaxy cluster gas mass fraction measurements combined with cosmic chronometer $H (z)$ data a…

astro-ph.CO2025

A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant

L. R. ColaÃ§o, R. F. L. Holanda, Z. C. Santana +1

We present a cosmological model-independent determination of the Hubble constant, $H_{0}$ , by combining time-delay measurements from seven TDCOSMO systems, Einstein radius measuremen…

astro-ph.CO2024

Non-Parametric Analysis for the Dark Matter Density Evolution

Z. C. Santana, R. F. L. Holanda, R. Silva

In this paper, we investigate a potential departure in the standard dark matter density evolution law, $I ¨ _{d m} = I ¨ _{d m, 0} (1 + z)^{3}$ . The method involves considering a deformed evol…

Tracing the Evolution of I^c◯m​(z) over the Last 10 Billion Years with Non-parametric Methods

A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant

Non-Parametric Analysis for the Dark Matter Density Evolution

Tracing the Evolution of $I^c ◯_{m} (z)$ over the Last 10 Billion Years with Non-parametric Methods