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Cluster Abundance Constraints for Cosmological Models with a Time‐varying, Spatially Inhomogeneous Energy Component with Negative Pressure
Open accessAbstract
The abundance of rich clusters is a strong constraint on the mass power spectrum. The current constraint can be expressed in the form σ 8 Ω =0.5±0.1, where σ 8 is the rms mass fluctuation on 8 h -1 Mpc scales, Ω m is the ratio of matter density to the critical density, and γ is model dependent. In this paper, we determine a general expression for γ that applies to any models with a mixture of cold dark matter plus cosmological constant or quintessence (a time-evolving, spatially inhomogeneous component with negative pressure) including dependence on the spectral index n , the Hubble constant h , and the equation of state of the quintessence component w . The cluster constraint is combined with COBE measurements to identify a range of best-fitting models. The constraint from the evolution of rich clusters is also discussed.
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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
The statistics of peaks of Gaussian random fields
Bardeen, J. M., Bond, J. R., Kaiser, N., & Szalay, A. S. (1986) · The Astrophysical Journal · doi:10.1086/164143 · Cited by 3,270
Cited by
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Komatsu, E., Smith, K. M., Dunkley, J., Bennett, C. L., Gold, B., Hinshaw, G., Jarosik, N., Larson, D., Nolta, M. R., Page, L., et al. (2011) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/192/2/18 · Cited by 8,802
FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION
Komatsu, E., Dunkley, J., Nolta, M. R., Bennett, C. L., Gold, B., Hinshaw, G., Jarosik, N., Larson, D., Limon, M., Page, L., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/330 · Cited by 5,786
THE CASE FOR A POSITIVE COSMOLOGICAL Λ-TERM
SAHNI, V., & STAROBINSKY, A. (2000) · International Journal of Modern Physics D · doi:10.1142/s0218271800000542 · Cited by 2,767
Modified gravity theories on a nutshell: Inflation, bounce and late-time evolution
Nojiri, S., Odintsov, S. D., & Oikonomou, V. K. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.06.001 · Cited by 2,734
Alam, S., Aubert, M., Avila, S., Balland, C., Bautista, J. E., Bershady, M. A., Bizyaev, D., Blanton, M. R., Bolton, A. S., Bovy, J., et al. (2021) · Physical Review D · doi:10.1103/physrevd.103.083533 · Cited by 1,337
Metadata
- Authors
- Wang, L., & Steinhardt, P. J.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1998-12
- Volume
- 508
- Issue
- 2
- Pages
- 483-490
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1989563518
- Cited by
- 933
- References
- 2
- FWCI
- 13.18
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Wang, L., & Steinhardt, P. J. (1998). Cluster Abundance Constraints for Cosmological Models with a Time‐varying, Spatially Inhomogeneous Energy Component with Negative Pressure. The Astrophysical Journal. https://doi.org/10.1086/306436
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