Artículos de revistas
Observational challenges in dark energy models
Fecha
2013-08Registro en:
Bengochea, Gabriel Roman; Observational challenges in dark energy models; Asociación Argentina de Astronomía; Asociación Argentina de Astronomía; 55; 8-2013; 431-434
0571-3285
Autor
Bengochea, Gabriel Roman
Resumen
Cosmological distances inferred from supernova Ia observations constitute the most direct and solid evidence for the recently detected accelerated expansion of the universe. In this contribution, we show some inconsistencies between two of the main light-curve fitters used for the elaboration of supernova Ia data sets, opening new observational challenges regarding the use of these luminosity distances when combined with CMB and BAO data. We also mention ongoing analysis related to alternative models. The resolution of these challenges will be crucial for XXI century cosmology.