Constraining evolution of quintessence with CMB and SNIa data

Wolung Lee*, Kin Wang Ng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

23 引文 斯高帕斯(Scopus)

摘要

The equation of state of the hypothetical dark energy component, which constitutes about two-thirds of the critical density of the Universe, may be very different from that of a cosmological constant. Employing a phenomenological model, we investigate semianalytically the constraints imposed on the scalar quintessence by supernovae observations, and by the acoustic scale extracted from recent cosmic microwave background data. We show that a universe with a quintessence-dominated phase in the dark age is consistent with the current observational constraints.

原文英語
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
67
發行號10
DOIs
出版狀態已發佈 - 2003
對外發佈

ASJC Scopus subject areas

  • 核能與高能物理
  • 物理與天文學(雜項)

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