COBEDMR–normalized Dark Energy Cosmogony | Zendy

Pia Mukherjee | Zendy; A. J. Banday | Zendy; Alain Riazuelo | Zendy; K. M. Górski | Zendy; Bharat Ratra | Zendy

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COBEDMR–normalized Dark Energy Cosmogony

Author(s) -

Pia Mukherjee,

A. J. Banday,

Alain Riazuelo,

K. M. Górski,

Bharat Ratra

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/378951

Subject(s) - dark energy , physics , cosmic microwave background , cosmological constant , normalization (sociology) , scalar field , lambda cdm model , quintessence , astrophysics , hubble's law , cosmology , theoretical physics , classical mechanics , quantum mechanics , anisotropy , sociology , anthropology

Likelihood analyses of the COBE-DMR sky maps are used to determine thenormalization of the inverse-power-law-potential scalar field dark energymodel. Predictions of the DMR-normalized model are compared to variousobservations to constrain the allowed range of model parameters. Although thederived constraints are restrictive, evolving dark energy density scalar fieldmodels remain an observationally-viable alternative to the constantcosmological constant model.Comment: 26 pages, 10 figures, ApJ accepte

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