Stationary dark energy with a baryon-dominated era: solving the coincidence problem with a linear coupling
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 therefor...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) Kapitel/Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
2001
|
| In: |
Arxiv
|
| Online-Zugang: | Verlag, Volltext: http://arxiv.org/abs/astro-ph/0108143
|
| Verfasserangaben: | Domenico Tocchini-Valentini and Luca Amendola, Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monte Porzio Catone, Roma, Italy |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1565454200 | ||
| 003 | DE-627 | ||
| 005 | 20220814023847.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 171117s2001 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)1565454200 | ||
| 035 | |a (DE-576)495454206 | ||
| 035 | |a (DE-599)BSZ495454206 | ||
| 035 | |a (OCoLC)1340982169 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Tocchini-Valentini, Domenico |e VerfasserIn |0 (DE-588)1147991928 |0 (DE-627)1007480661 |0 (DE-576)495452084 |4 aut | |
| 245 | 1 | 0 | |a Stationary dark energy with a baryon-dominated era |b solving the coincidence problem with a linear coupling |c Domenico Tocchini-Valentini and Luca Amendola, Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monte Porzio Catone, Roma, Italy |
| 264 | 1 | |c 2001 | |
| 300 | |a 6 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 17.11.2017 | ||
| 520 | |a 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. | ||
| 650 | 4 | |a High Energy Physics - Phenomenology | |
| 650 | 4 | |a General Relativity and Quantum Cosmology | |
| 650 | 4 | |a Astrophysics | |
| 700 | 1 | |a Amendola, Luca |d 1963- |e VerfasserIn |0 (DE-588)1029171270 |0 (DE-627)732547482 |0 (DE-576)377045128 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Arxiv |d Ithaca, NY : Cornell University, 1991 |g (2001) Artikel-Nummer 0108143, 6 Seiten |h Online-Ressource |w (DE-627)509006531 |w (DE-600)2225896-6 |w (DE-576)28130436X |7 nnas |a Stationary dark energy with a baryon-dominated era solving the coincidence problem with a linear coupling |
| 773 | 1 | 8 | |g year:2001 |g extent:6 |a Stationary dark energy with a baryon-dominated era solving the coincidence problem with a linear coupling |
| 856 | 4 | 0 | |u http://arxiv.org/abs/astro-ph/0108143 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20171117 | ||
| 993 | |a Article | ||
| 998 | |g 1029171270 |a Amendola, Luca |m 1029171270:Amendola, Luca |p 2 |y j | ||
| 999 | |a KXP-PPN1565454200 |e 2987405235 | ||
| BIB | |a Y | ||
| JSO | |a {"title":[{"title_sort":"Stationary dark energy with a baryon-dominated era","title":"Stationary dark energy with a baryon-dominated era","subtitle":"solving the coincidence problem with a linear coupling"}],"person":[{"role":"aut","roleDisplay":"VerfasserIn","display":"Tocchini-Valentini, Domenico","given":"Domenico","family":"Tocchini-Valentini"},{"given":"Luca","family":"Amendola","role":"aut","roleDisplay":"VerfasserIn","display":"Amendola, Luca"}],"recId":"1565454200","language":["eng"],"note":["Gesehen am 17.11.2017"],"type":{"media":"Online-Ressource","bibl":"chapter"},"id":{"eki":["1565454200"]},"origin":[{"dateIssuedKey":"2001","dateIssuedDisp":"2001"}],"name":{"displayForm":["Domenico Tocchini-Valentini and Luca Amendola, Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monte Porzio Catone, Roma, Italy"]},"relHost":[{"disp":"Stationary dark energy with a baryon-dominated era solving the coincidence problem with a linear couplingArxiv","type":{"bibl":"edited-book","media":"Online-Ressource"},"note":["Gesehen am 28.05.2024"],"recId":"509006531","language":["eng"],"pubHistory":["1991 -"],"part":{"year":"2001","extent":"6","text":"(2001) Artikel-Nummer 0108143, 6 Seiten"},"titleAlt":[{"title":"Arxiv.org"},{"title":"Arxiv.org e-print archive"},{"title":"Arxiv e-print archive"},{"title":"De.arxiv.org"}],"title":[{"title_sort":"Arxiv","title":"Arxiv"}],"physDesc":[{"extent":"Online-Ressource"}],"origin":[{"publisherPlace":"Ithaca, NY ; [Erscheinungsort nicht ermittelbar]","dateIssuedDisp":"1991-","dateIssuedKey":"1991","publisher":"Cornell University ; Arxiv.org"}],"id":{"eki":["509006531"],"zdb":["2225896-6"]}}],"physDesc":[{"extent":"6 S."}]} | ||
| SRT | |a TOCCHINIVASTATIONARY2001 | ||