The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.
Cosmology and the bispectrum
Open accessAbstract
The present spatial distribution of galaxies in the Universe is non-Gaussian, with 40% skewness in $50{h}^{\ensuremath{-}1}\text{ }\text{ }\mathrm{Mpc}$ spheres, and remarkably little is known about the information encoded in it about cosmological parameters beyond the power spectrum. In this work we present an attempt to bridge this gap by studying the bispectrum, paying particular attention to a joint analysis with the power spectrum and their combination with CMB data. We address the covariance properties of the power spectrum and bispectrum including the effects of beat coupling that lead to interesting cross-correlations, and discuss how baryon acoustic oscillations break degeneracies. We show that the bispectrum has significant information on cosmological parameters well beyond its power in constraining galaxy bias, and when combined with the power spectrum is more complementary than combining power spectra of different samples of galaxies, since non-Gaussianity provides a somewhat different direction in parameter space. In the framework of flat cosmological models we show that most of the improvement of adding bispectrum information corresponds to parameters related to the amplitude and effective spectral index of perturbations, which can be improved by almost a factor of 2. Moreover, we demonstrate that the expected statistical uncertainties in ${\ensuremath{\sigma}}_{8}$ of a few percent are robust to relaxing the dark energy beyond a cosmological constant.
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Cites
Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
Spergel, D. N., Bean, R., Dore, O., Nolta, M. R., Bennett, C. L., Dunkley, J., Hinshaw, G., Jarosik, N., Komatsu, E., Page, L., et al. (2007) · The Astrophysical Journal Supplement Series · doi:10.1086/513700 · Cited by 6,778
Simulations of the formation, evolution and clustering of galaxies and quasars
Springel, V., White, S. D. M., Jenkins, A., Frenk, C. S., Yoshida, N., Gao, L., Navarro, J., Thacker, R., Croton, D., Helly, J., et al. (2005) · Nature · doi:10.1038/nature03597 · Cited by 5,067
Eisenstein, D. J., Zehavi, I., Hogg, D. W., Scoccimarro, R., Blanton, M. R., Nichol, R. C., Scranton, R., Seo, H., Tegmark, M., Zheng, Z., et al. (2005) · The Astrophysical Journal · doi:10.1086/466512 · Cited by 4,629
Self-citationCosmological parameters from SDSS and WMAP
Tegmark, M., Strauss, M. A., Blanton, M. R., Abazajian, K., Dodelson, S., Sandvik, H., Wang, X., Weinberg, D. H., Zehavi, I., Bahcall, N. A., et al. (2004) · Physical Review D · doi:10.1103/physrevd.69.103501 · Cited by 3,982
Self-citationThe 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
Large-scale bias and the peak background split
Sheth, R. K., & Tormen, G. (1999) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.1999.02692.x · Cited by 2,783
Clustering in real space and in redshift space
Kaiser, N. (1987) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/227.1.1 · Cited by 2,750
Eisenstein, D. J., Zehavi, I., Hogg, D. W., Scoccimarro, R., Blanton, M. R., Nichol, R. C., Scranton, R., Seo, H., Tegmark, M., Zheng, Z., et al. (2005) · Cited by 2,568
Self-citationCole, S., Percival, W. J., Peacock, J. A., Norberg, P., Baugh, C. M., Frenk, C. S., Baldry, I., Bland-Hawthorn, J., Bridges, T., Cannon, R., et al. (2005) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2005.09318.x · Cited by 2,094
Cited by
Transients from initial conditions in cosmological simulations
Crocce, M., Pueblas, S., & Scoccimarro, R. (2006) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2006.11040.x · Cited by 657
Self-citationHow to evade the sample variance limit on measurements of redshift-space distortions
McDonald, P., & Seljak, U. (2009) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2009/10/007 · Cited by 268
HInet: Generating Neutral Hydrogen from Dark Matter with Neural Networks
Wadekar, D., Villaescusa-Navarro, F., Ho, S., & Perreault-Levasseur, L. (2021) · The Astrophysical Journal · doi:10.3847/1538-4357/ac033a · Cited by 32
Metadata
- Authors
- Sefusatti, E., Crocce, M., Pueblas, S., & Scoccimarro, R.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2006-07-20
- Volume
- 74
- Issue
- 2
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W1983742876
- Cited by
- 270
- References
- 66
- FWCI
- 5.21
- Type
- journal article
- Language
- en
- Open access
- green
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