The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
WMAP and the generalized Chaplygin gas
Open accessAbstract
We compare the WMAP temperature power spectrum and SNIa data to models with a generalized Chaplygin gas as dark energy. The generalized Chaplygin gas is a component with an exotic equation of state, p X = − A /ρ α X (a polytropic gas with negative constant and exponent). Our main result is that, restricting to a flat universe and to adiabatic pressure perturbations for the generalized Chaplygin gas, the constraints at 95% CL to the present equation of state w X = p X /ρ X and to the parameter α are −1 ⩽ w X < −0.8, 0 ⩽ α < 0.2, respectively. Moreover, we show that a Chaplygin gas (α = 1) is ruled out as a candidate for dark energy by our analysis at more than the 99.99% CL. A generalized Chaplygin gas appears much less likely as a unified dark matter candidate (Ω CDM = 0) than as a dark energy model, although its χ 2 is only two sigma away from the expected value.
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Cites
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
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Measurements of Ω and Λ from 42 High‐Redshift Supernovae
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Cosmological consequences of a rolling homogeneous scalar field
Ratra, B., & Peebles, P. J. E. (1988) · Physical Review D · doi:10.1103/physrevd.37.3406 · Cited by 4,310 · cited 2×
“In fact, in the simplest uncoupled quintessence models [4]–[6] based on scalar fields with an ordinary Klein–Gordon Lagrangian, quintessence fluctuations are evanescent on subhorizon scales.”
Cosmological Imprint of an Energy Component with General Equation of State
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Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
Freedman, W. L., Madore, B. F., Gibson, B. K., Ferrarese, L., Kelson, D. D., Sakai, S., Mould, J. R., Kennicutt, Jr., Ford, H. C., Graham, J. A., et al. (2001) · The Astrophysical Journal · doi:10.1086/320638 · Cited by 3,298
An alternative to quintessence
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Generalized Chaplygin gas, accelerated expansion, and dark-energy-matter unification
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Cited by
In the realm of the Hubble tension—a review of solutions *
Di Valentino, E., Mena, O., Pan, S., Visinelli, L., Yang, W., Melchiorri, A., Mota, D. F., Riess, A. G., & Silk, J. (2021) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ac086d · Cited by 2,065
Cosmology and fundamental physics with the Euclid satellite
The Euclid Theory Working Group, Amendola, L., Appleby, S., Avgoustidis, A., Bacon, D., Baker, T., Baldi, M., Bartolo, N., Blanchard, A., Bonvin, C., et al. (2018) · Living Reviews in Relativity · doi:10.1007/s41114-017-0010-3 · Cited by 1,009
Self-citationCosmology and Fundamental Physics with the Euclid Satellite
The Euclid Theory Working Group, Amendola, L., Appleby, S., Bacon, D., Baker, T., Baldi, M., Bartolo, N., Blanchard, A., Bonvin, C., Borgani, S., et al. (2013) · Living Reviews in Relativity · doi:10.12942/lrr-2013-6 · Cited by 899
Self-citationThe end of unified dark matter?
Sandvik, H. B., Tegmark, M., Zaldarriaga, M., & Waga, I. (2004) · Physical Review D · doi:10.1103/physrevd.69.123524 · Cited by 433
Bean, R., & Doré, O. (2004) · Physical Review D · doi:10.1103/physrevd.69.083503 · Cited by 320
Metadata
- Authors
- Amendola, L., Finelli, F., Burigana, C., & Carturan, D.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2003-07-08
- Volume
- 2003
- Issue
- 07
- Pages
- 005-005
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W1999192875
- Cited by
- 271
- References
- 32
- FWCI
- 11.79
- Type
- journal article
- Language
- en
- Open access
- green
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