A Time-dependent Cosmological Constant Phenomenology

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dc.creatorCapozziello, Salvatore
dc.creatorde Ritis, Ruggiero
dc.creatorMarino, Alma Angela
dc.date1996-05-29
dc.date.accessioned2026-07-07T10:31:43Z
dc.date.available2026-07-07T10:31:43Z
dc.descriptionWe construct a cosmological toy model in which a step-function ``cosmological constant'' is taken into consideration beside ordinary matter. We assume that $Λ$ 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.
dc.description9 pages, Latex, submitted to Phys. Lett. A
dc.identifierhttps://arxiv.org/abs/astro-ph/9605176
dc.identifierhttp://arxiv.org/abs/astro-ph/9605176
dc.identifierNuovoCim.B112:1351-1359,1997
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178509
dc.subjectAstrophysics
dc.titleA Time-dependent Cosmological Constant Phenomenology
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