Searching for non-Gaussianity in the observational cosmic microwave background data

O.V. Verkhodanov
Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Zelenchukskiy Region, Karachai-Cherkessian Republic, Russian Federation

Methods for searching for non-Gaussianity in the WMAP data are reviewed and the associated problems related to the cosmic microwave background (CMB) data analysis are discussed. Evidence for non-Gaussianity has been obtained by various methods and from a number of multipole ranges. Different approaches to searching for non-Gaussian CMB data are sensitive to different manifestations of non-Gaussianity, which sometimes are due to the primordial non-Gaussianity and sometimes to galactic foregrounds and/or systematic residuals remaining after the data analysis that are difficult to take into account.

PACS: 95.75.−z, 98.70.Vc, 98.80.−k (all)
DOI: 10.3367/UFNe.0182.201211d.1177
URL: https://ufn.ru/en/articles/2012/11/c/
Web of Science

000314808600003
Scopus

2-s2.0-84873931893
ADS NASA

2012PhyU...55.1098V
Citation: Verkhodanov O V "Searching for non-Gaussianity in the observational cosmic microwave background data" Phys. Usp. 55 1098–1114 (2012)

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Received: 13th, July 2011, revised: 1st, December 2011, accepted: 6th, December 2011

Оригинал: Верходанов О В «Поиск негауссовости в наблюдательных данных по реликтовому микроволновому фону» УФН 182 1177–1193 (2012); DOI: 10.3367/UFNr.0182.201211d.1177

References (164) Cited by (12) Similar articles (20) ↓

V.A. Rubakov “The Null Energy Condition and its violation” Phys. Usp. 57 128–142 (2014)
D.P. Skulachev “Cosmic microwave background anisotropy data correlation in WMAP and Relikt-1 experiments” Phys. Usp. 53 373–376 (2010)
M.V. Sazhin “Anisotropy and polarization of cosmic microwave background: state of the art” Phys. Usp. 47 187–194 (2004)
A.D. Chernin “Dark energy and universal antigravitation” Phys. Usp. 51 253–282 (2008)
V.N. Lukash, V.A. Rubakov “Dark energy: myths and reality” Phys. Usp. 51 283–289 (2008)
N.S. Kardashev, I.D. Novikov et al “Review of scientific topics for Millimetron space observatory” Phys. Usp. 57 1199–1228 (2014)
Ya.M. Kramarovskii, V.P. Chechev “The puzzle of the lightest elements: observations, predictions, hypotheses” Phys. Usp. 42 563 (1999)
I.D. Novikov “A new concept of wormholes and the Multiverse” Phys. Usp. 61 280–288 (2018)
I.L. Rozental’ “Cosmic objects and elementary particles” Sov. Phys. Usp. 20 167–173 (1977)
Yu.L. Bolotin, D.A. Erokhin, O.A. Lemets “Expanding Universe: slowdown or speedup?” Phys. Usp. 55 876–918 (2012)
P.G. Kryukov “Femtosecond lasers for astrophysics” Phys. Usp. 58 762–771 (2015)
S.V. Troitsky “Unsolved problems in particle physics” Phys. Usp. 55 72–95 (2012)
S.G. Karshenboim “Progress in the accuracy of the fundamental physical constants: 2010 CODATA recommended values” Phys. Usp. 56 883–909 (2013)
D.I. Kazakov “Prospects of elementary particle physics” Phys. Usp. 62 364–377 (2019)
I.D. Novikov, V.P. Frolov “Black holes in the Universe” Phys. Usp. 44 291–305 (2001)
V.S. Beskin, Ya.N. Istomin, A.A. Philippov “Radio pulsars: the search for truth” Phys. Usp. 56 164–179 (2013)
Yu.G. Kudenko “T2K observation of muon-to-electron neutrino oscillations” Phys. Usp. 56 1120–1125 (2013)
S.M. Stishov, A.E. Petrova “Helical itinerant magnet MnSi: magnetic phase transition” Phys. Usp. 60 1268–1276 (2017)
K.N. Mukhin, V.N. Tikhonov “Old and new exotic phenomena in the world of elementary particles” Phys. Usp. 44 1141–1188 (2001)
V.B. Braginskii “Gravitational-wave astronomy: new methods of measurements” Phys. Usp. 43 691–699 (2000)

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