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, Viale del Parco Mellini 84, 00136 Roma, Italy |
Fussnoten: | Gesehen am 17.11.2017 |
Titel Quelle: | Enthalten in: Physical review / D |
Jahr Quelle: | 2002 |
Band/Heft Quelle: | 65(2002,6) Artikel-Nummer 06350, 6 Seiten |
ISSN Quelle: | 1550-2368 |
| 1089-4918 |
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 accommodate 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. |
DOI: | doi:10.1103/PhysRevD.65.063508 |
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://dx.doi.org/10.1103/PhysRevD.65.063508 |
| Verlag: https://link.aps.org/doi/10.1103/PhysRevD.65.063508 |
| DOI: https://doi.org/10.1103/PhysRevD.65.063508 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1565454006 |
Verknüpfungen: | → Zeitschrift |
Stationary dark energy with a baryon-dominated era / Tocchini-Valentini, Domenico [VerfasserIn] (Online-Ressource)
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