Dark energy and the BOOMERANG data

• Verfasst von: Amendola, Luca [VerfasserIn]
• Titel: Dark energy and the BOOMERANG data
• Verf.angabe: Luca Amendola, Osservatorio Astronomico di Roma, Viale del Parco Mellini 84, 00136 Roma, Italy
• Umfang: 4 S.
• Fussnoten: Gesehen am 17.11.2017
• Titel Quelle: Enthalten in: Physical review letters
• Jahr Quelle: 2001
• Band/Heft Quelle: 86(2001), 2, S. 196-199
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.86.196
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565457218

Abstract

The recent high-quality BOOMERANG data allow the testing of many competing cosmological models. Here I present a seven-parameter likelihood analysis of dark energy models with exponential potential and explicit coupling to dark matter. The BOOMERANG data constrain the dimensionless coupling β to be smaller than 0.1, an order of magnitude better than previous limits. In terms of the constant ξ of nonminimally coupled theories, this amounts to ξ<0.01. On the other hand, BOOMERANG does not have enough sensitivity to put constraints on the potential slope.