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Microwave background bispectrum. II. A probe of the low redshift universe
Open accessAbstract
Gravitational fluctuations along the line of sight from the surface of last scatter to the observer distort the microwave background in several related ways: The fluctuations deflect the photon path (gravitational lensing), the decay of the gravitational potential produces additional fluctuations (ISW effect) and scattering off of hot gas in clusters produce additional fluctuations (Sunyaev-Zel'dovich effect). Even if the initial fluctuations generated at the surface of last scatter were Gaussian, the combination of these effects produces non-Gaussian features in the microwave sky. We discuss the microwave bispectrum as a tool for measuring and studying this signal. For MAP, we estimate that these measurements will enable us to determine the fraction of ionized gas and to probe the time evolution of the gravitational potential.
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Citations
Cited by
SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE(WMAP) OBSERVATIONS: COSMOLOGICAL INTERPRETATION
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
Self-citationThree‐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
Self-citationCosmic Microwave Background Anisotropies
Hu, W., & Dodelson, S. (2002) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.40.060401.093926 · Cited by 745
Vielva, P., Martinez‐Gonzalez, E., Barreiro, R. B., Sanz, J. L., & Cayon, L. (2004) · The Astrophysical Journal · doi:10.1086/421007 · Cited by 494
Cosmic microwave background lensing reconstruction on the full sky
Okamoto, T., & Hu, W. (2003) · Physical Review D · doi:10.1103/physrevd.67.083002 · Cited by 472
Metadata
- Authors
- Goldberg, D. M., & Spergel, D. N.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 1999-04-23
- Volume
- 59
- Issue
- 10
- ISSN
- 0556-2821 (ISSN-L)
- 1089-4918
- OpenAlex
- W2199319344
- Cited by
- 194
- References
- 0
- FWCI
- 8.83
- Type
- journal article
- Language
- en
- Open access
- green
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