Status: Bibliographieeintrag
Standort: ---
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| Online-Ressource |
Verfasst von: | Tocchini-Valentini, Domenico [VerfasserIn]  |
| Amendola, Luca [VerfasserIn]  |
Titel: | Stationary dark energy with a baryon-dominated era |
Titelzusatz: | solving the coincidence problem with a linear coupling |
Verf.angabe: | Domenico Tocchini-Valentini and Luca Amendola, Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monte Porzio Catone, Roma, Italy |
Fussnoten: | Gesehen am 17.11.2017 |
Titel Quelle: | Enthalten in: De.arxiv.org |
Jahr Quelle: | 2001 |
Band/Heft Quelle: | (2001) Artikel-Nummer 0108143, 6 Seiten |
Abstract: | We show that all cosmological models with an accelerated stationary global attractor reduce asymptotically to a dark energy field with an exponential potential coupled linearly to a perfect fluid dark matter. In such models the abundance of the dark components reaches a stationary value and therefore the problem of their present coincidence is solved. The requirement of a vanishing coupling of the baryons in order to pass local gravity experiments induces the existence of an intermediate baryon-dominated era. We discuss in detail the properties of these models and show that to accomodate standard nucleosynthesis they cannot produce a microwave background consistent with observations. We conclude that, among stationary models, only a time-dependent coupling or equation of state might provide a realistic cosmology. |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Verlag: http://arxiv.org/abs/astro-ph/0108143 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1565454200 |
Verknüpfungen: | → Sammelwerk |
Stationary dark energy with a baryon-dominated era / Tocchini-Valentini, Domenico [VerfasserIn] (Online-Ressource)
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