The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Non-Gaussianity of the Derived Maps from the First-Year Wilkinson Microwave Anisotropy Probe Data
Open accessAbstract
We present non-Gaussianity testing on derived maps from the recently released first-year Wilkinson Microwave Anisotropy Probe data by Tegmark, de Oliveria-Costa, & Hamilton. Our test is based on a phase-mapping technique that has the advantage of testing non-Gaussianity at separate multipole bands. We show that their foreground-cleaned map is against the random-phase hypothesis at all four multipole bands centered around ℓ = 150, 290, 400, and 500. Their Wiener-filtered map, on the other hand, is Gaussian for ℓ < 250 and marginally Gaussian for 224 < ℓ < 350. However, we see the evidence of non-Gaussianity for ℓ > 350 as we detect certain degrees of phase coupling, hence against the random-phase hypothesis. Our phase-mapping technique is particularly useful for testing the accuracy of component separation methods.
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Cites
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
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
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 large-scale structure of the Universe
Springel, V., Frenk, C. S., & White, S. D. M. (2006) · Nature · doi:10.1038/nature04805 · Cited by 780
Vielva, P., Martinez‐Gonzalez, E., Barreiro, R. B., Sanz, J. L., & Cayon, L. (2004) · The Astrophysical Journal · doi:10.1086/421007 · Cited by 494
Is the Low-ℓMicrowave Background Cosmic?
Schwarz, D. J., Starkman, G. D., Huterer, D., & Copi, C. J. (2004) · Physical Review Letters · doi:10.1103/physrevlett.93.221301 · Cited by 488
Metadata
- Authors
- Chiang, L.-Y., Naselsky, P. D., Verkhodanov, O. V., & Way, M. J.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2003-05-27
- Volume
- 590
- Issue
- 2
- Pages
- L65-L68
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2949346063
- Cited by
- 160
- References
- 1
- FWCI
- 14.69
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Chiang, L.-Y., Naselsky, P. D., Verkhodanov, O. V., & Way, M. J. (2003). Non-Gaussianity of the Derived Maps from the First-Year Wilkinson Microwave Anisotropy Probe Data. The Astrophysical Journal. https://doi.org/10.1086/376822
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