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06 October 2024

» arxiv » astro-ph/9605176

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A Time-dependent Cosmological Constant Phenomenology
Salvatore Capozziello ; Ruggiero de Ritis ; Alma Angela Marino ;
Date:	29 May 1996
Journal:	Nuovo Cim. B112 (1997) 1351-1359
Abstract:	We construct a cosmological toy model in which a step-function ``cosmological constant’’ is taken into consideration beside ordinary matter. We assume that $Lambda$ takes two values depending on the epoch, and matter goes from a radiation dominated era to a dust dominated era. The model is exactly solvable and it can be compared with recent observations.
Source:	arXiv, astro-ph/9605176
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