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Fractal Bubble cosmology: a concordant cosmological model?
- Source :
- Monthly Notices of the Royal Astronomical Society: Letters. 399:L6-L10
- Publication Year :
- 2009
- Publisher :
- Oxford University Press (OUP), 2009.
-
Abstract
- The Fractal Bubble model has been proposed as a viable cosmology that does not require dark energy to account for cosmic acceleration, but rather attributes its observational signature to the formation of structure. In this paper it is demonstrated that, in contrast to previous findings, this model is not a good fit to cosmological supernovae data; there is significant tension in the best fit parameters obtained from different samples, whereas LCDM is able to fit all datasets consistently. Furthermore, the concordance between galaxy clustering scales and data from the cosmic microwave background is not achieved with the most recent supernova compilations. The validity of the FB formalism as a sound cosmological model is further challenged as it is shown that previous studies of this model achieve concordance by requiring a value for the present day Hubble constant that is derived from supernovae data containing an arbitrary distance normalisation.<br />Comment: 6 pages, 3 figures, revised version published in MNRAS letters
- Subjects :
- Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
COSMIC cancer database
Cosmic microwave background
Dark matter
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Cosmology
Supernova
symbols.namesake
Fractal
Space and Planetary Science
symbols
Dark energy
Astrophysics - Cosmology and Nongalactic Astrophysics
Hubble's law
Subjects
Details
- ISSN :
- 17453933 and 17453925
- Volume :
- 399
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society: Letters
- Accession number :
- edsair.doi.dedup.....99d0f057fa0df4decba831798057bd78