The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.
Extracting Primordial Non-Gaussianity without Cosmic Variance
Open accessAbstract
Recent work has emphasized the possibility to probe non-Gaussianity of local type by measuring the power spectrum of highly biased tracers of large scale structure on very large scales. This method is limited by the cosmic variance, by the finite number of structures on the largest scales, and by the partial degeneracy with other cosmological parameters that can mimic the same effect. We propose an alternative method based on the fact that on large scales, halos are linearly biased, but not stochastic, tracers of dark matter: by correlating a highly biased tracer of large scale structure against an unbiased tracer, one eliminates the cosmic variance error, which can lead to a significant increase in signal to noise. For an ideal survey out to z approximately 2, the error reduction can be as large as a factor of 7, which should guarantee a detection of non-Gaussianity from an all-sky survey of this type.
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“Although measurements of the galaxy power spectrum on very large scales are challenging owing to sky systematics ( Leistedt et al. 2014 ) and cosmic variance, the prospect of using multiple tracers of the same fi eld could signi fi cantly improve the constraining power for this observable ( Seljak 2009 ) .”
From LSST: From Science Drivers to Reference Design and Anticipated Data Products (2019) · cites this paper as Seljak 2009
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Non-Gaussianity from inflation: theory and observations
Bartolo, N., Komatsu, E., Matarrese, S., & Riotto, A. W. (2004) · Physics Reports · doi:10.1016/j.physrep.2004.08.022 · Cited by 1,144
Dalal, N., Doré, O., Huterer, D., & Shirokov, A. (2008) · Physical Review D · doi:10.1103/physrevd.77.123514 · Cited by 830
The age dependence of halo clustering
Gao, L., Springel, V., & White, S. D. M. (2005) · Monthly Notices of the Royal Astronomical Society Letters · doi:10.1111/j.1745-3933.2005.00084.x · Cited by 685
Constraints on local primordial non-Gaussianity from large scale structure
Slosar, A., Hirata, C., Seljak, U., Ho, S., & Padmanabhan, N. (2008) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2008/08/031 · Cited by 487
Self-citationThe Effect of Primordial Non-Gaussianity on Halo Bias
Matarrese, S., & Verde, L. (2008) · The Astrophysical Journal · doi:10.1086/587840 · Cited by 384
The age dependence of halo clustering
Gao, L., Springel, V., & White, S. D. M. (2005) · Cited by 382
The clustering of luminous red galaxies in the Sloan Digital Sky Survey imaging data
Padmanabhan, N., Schlegel, D. J., Seljak, U., Makarov, A., Bahcall, N. A., Blanton, M. R., Brinkmann, J. V., Eisenstein, D. J., Finkbeiner, D. P., Gunn, J. E., et al. (2007) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2007.11593.x · Cited by 360
Self-citationConstraints on local primordial non-Gaussianity from large scale structure
Slosar, A., Hirata, C. M., Seljak, U., Ho, S., & Padmanabhan, N. (2008) · Zurich Open Repository and Archive (University of Zurich) · doi:10.5167/uzh-16577 · Cited by 270
Self-citationYadav, A., & Wandelt, B. D. (2008) · Physical Review Letters · doi:10.1103/physrevlett.100.181301 · Cited by 263
Primordial non-Gaussianity, statistics of collapsed objects, and the integrated Sachs-Wolfe effect
Afshordi, N., & Tolley, A. J. (2008) · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · doi:10.1103/physrevd.78.123507 · Cited by 185
Large-scale bias and stochasticity of haloes and dark matter
Seljak, U., & Warren, M. S. (2004) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2004.08297.x · Cited by 182
Self-citationNon-Gaussian Halo Bias and Future Galaxy Surveys
Carbone, C., Verde, L., & Matarrese, S. (2008) · The Astrophysical Journal · doi:10.1086/592020 · Cited by 133
SDSS galaxy clustering: luminosity and colour dependence and stochasticity
Swanson, M. E. C., Tegmark, M., Blanton, M. R., & Zehavi, I. (2008) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2008.12948.x · Cited by 107
21-cm Background Anisotropies Can Discern Primordial Non-Gaussianity
Cooray, A. R. (2006) · Physical Review Letters · doi:10.1103/physrevlett.97.261301 · Cited by 106
Evolution of Second-Order Cosmological Perturbations and Non-Gaussianity
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Evolution of second-order cosmological perturbations and non-Gaussianity
Bartolo, N., Matarrese, S., & Riotto, A. W. (2004) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2004/01/003 · Cited by 81
Beating lensing cosmic variance with galaxy tomography
Pen, U.-L. (2004) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2004.07746.x · Cited by 28
Weak lensing of the primary CMB bispectrum
Cooray, A. R., Sarkar, D., & Serra, P. (2008) · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · doi:10.1103/physrevd.77.123006 · Cited by 25
Maximum-Likelihood Analysis of the COBE Angular Correlation Function
Seljak, U., & Bertschinger, E. (1993) · The Astrophysical Journal · doi:10.1086/187081 · Cited by 22
Self-citationBeating Lensing Cosmic Variance with Galaxy TomographyPreprint
Pen, U. (2004) · Cited by 19
COBE DMR data and the primordial index of density fluctuations
Scaramella, R., & Vittorio, N. (1993) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/263.1.l17 · Cited by 18
Maximum-Likelihood Analysis of the COBE Angular Correlation FunctionPreprint
Seljak, U., & Bertschinger, E. (2016) · Cited by 13
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LSST: From Science Drivers to Reference Design and Anticipated Data Products
Ivezić, Ž., Kahn, S. M., Tyson, J. A., Abel, B., Acosta, E., Allsman, R., Alonso, D., AlSayyad, Y., Anderson, S. F., Andrew, J., et al. (2019) · The Astrophysical Journal · doi:10.3847/1538-4357/ab042c · Cited by 4,357
The Simons Observatory: science goals and forecasts
Ade, P. A. R., Aguirre, J., Ahmed, Z., Aiola, S., Ali, A., Alonso, D., Alvarez, M. A., Arnold, K., Ashton, P., Austermann, J. E., et al. (2019) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2019/02/056 · Cited by 1,524
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
Desjacques, V., Jeong, D., & Schmidt, F. (2018) · Physics Reports · doi:10.1016/j.physrep.2017.12.002 · Cited by 960
Linear power spectrum of observed source number counts
Challinor, A. D., & Lewis, A. (2011) · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · doi:10.1103/physrevd.84.043516 · Cited by 512
Metadata
- Authors
- Seljak, U.
- Affiliations
- Lawrence Berkeley National Laboratory (US)
- Corresponding author
- Seljak, Uroš
- ORCID
- Seljak, Uroš
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-01-15
- Volume
- 102
- Issue
- 2
- Pages
- 021302-021302
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2009350306
- Cited by
- 354
- References
- 22
- Citations by year
- 2026: 13 · 2025: 18 · 2024: 24 · 2023: 18 · 2022: 26 · 2021: 27 · 2020: 31 · 2019: 36 · 2018: 20 · 2017: 15 · 2016: 24 · 2015: 19 · 2014: 14 · 2013: 11 · 2012: 14
- FWCI
- 9.41
- Type
- journal article
- Language
- en
- Open access
- green
- www.zora.uzh.ch
- Licence
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
- arXiv (Cornell University) (submittedVersion)
- Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Zurich Open Repository and Archive (University of Zurich)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
- Keywords
- primordial non-Gaussianity, cosmic variance, local non-Gaussianity, large-scale structure, biased tracers, dark matter halos, halo bias, cross correlation function, power spectrum, signal-to-noise ratio, all-sky survey
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