The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Effects of scale-dependent non-Gaussianity on cosmological structures
Open accessAbstract
The detection of primordial non-Gaussianity could provide a powerful means to test various inflationary scenarios. Although scale-invariant non-Gaussianity (often described by the f NL formalism) is currently best constrained by the CMB, single-field models with changing sound speed can have strongly scale-dependent non-Gaussianity. Such models could evade the CMB constraints but still have important effects at scales responsible for the formation of cosmological objects such as clusters and galaxies. We compute the effect of scale-dependent primordial non-Gaussianity on cluster number counts as a function of redshift, using a simple ansatz to model scale-dependent features. We forecast constraints on these models achievable with forthcoming datasets. We also examine consequences for the galaxy bispectrum. Our results are relevant for the Dirac–Born–Infeld model of brane inflation, where the scale dependence of the non-Gaussianity is directly related to the geometry of the extra dimensions.
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Cites
Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
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Self-citationThe statistics of peaks of Gaussian random fields
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Mukhanov, V. (2005) · doi:10.1017/cbo9780511790553 · Cited by 2,316
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The primordial black hole mass spectrum
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DBI in the sky: Non-Gaussianity from inflation with a speed limit
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Primordial non-Gaussianities in single-field inflation
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Cited by
Cosmology 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-citationKravtsov, A. V., & Borgani, S. (2012) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081811-125502 · Cited by 870
Desjacques, V., Jeong, D., & Schmidt, F. (2018) · Physics Reports · doi:10.1016/j.physrep.2017.12.002 · Cited by 817
Quasi-single field inflation and non-Gaussianities
Chen, X., & Wang, Y. (2010) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2010/04/027 · Cited by 567
Di Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., Weltman, A., Palmese, A., Huang, C. D., Bruck, C. V. D., et al. (2025) · Physics of the Dark Universe · doi:10.1016/j.dark.2025.101965 · Cited by 319
Metadata
- Authors
- LoVerde, M., Miller, A., Shandera, S., & Verde, L.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2008-04-10
- Volume
- 2008
- Issue
- 04
- Pages
- 014
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W2050922637
- Cited by
- 282
- References
- 9
- FWCI
- 25.35
- Type
- journal article
- Language
- en
- Open access
- green
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- LoVerde, M., Miller, A., Shandera, S., & Verde, L. (2008). Effects of scale-dependent non-Gaussianity on cosmological structures. Journal of Cosmology and Astroparticle Physics. https://doi.org/10.1088/1475-7516/2008/04/014
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