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CONSTRAINS ON THE Q...
CONSTRAINS ON THE QUINTESSENCE FROM OBSERVATIONAL DATA
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Badescu, A. M. (author)
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- Horellou, Cathy, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2011
- 2011
- English.
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In: Romanian Reports on Physics. - 1221-1451 .- 1841-8759. ; 63:3, s. 852-861
- Related links:
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https://research.cha...
Abstract
Subject headings
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- We investigated a flat Universe where the quintessence has been approximated by the first order Chebyshev polynomials. We used different cosmological measurements: angular diameter, luminosity distance and the Hubble parameter to constrain it. The first two types of measurements favor a time dependent quintessence with a value of the quintessence at the present epoch higher than in the cosmological constant case. Hubble parameter measurements support a Universe close to the one given by the cosmological constant case.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- ia supernovae
Publication and Content Type
- art (subject category)
- ref (subject category)
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