English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the apparition of event horizons in accelerated expandingcosmologies. We give a graphical and analytical representation of the horizonsusing proper distances to coordinate the events. Our analysis is mainlykinematical. We show that, independently of the dynamical equations, all theevent horizons tend in the future infinity to a given expression depending onthe scale factor that we call asymptotic horizon. We also encounter a subclassof accelerating models without horizon. When the ingoing null geodesics do notchange concavity in its cosmic evolution we recover the de Sitter andquintessence-Friedmann-Robertson-Walker models.Comment: Latex2e, 27 pages, 4 figures, submitted to Class. Quantum Gra

Graphical and kinematical approach to cosmological horizons