Testing Gaussianity, Homogeneity, and Isotropy with the Cosmic Microwave Background
Joint Authors
Abramo, L. Raul
Pereira, Thiago S.
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-25, 25 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-08-24
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Abstract EN
We review the basic hypotheses which motivate the statistical framework used to analyze the cosmic microwave background, and how that framework can be enlarged as we relax those hypotheses.
In particular, we try to separate as much as possible the questions of gaussianity, homogeneity, and isotropy from each other.
We focus both on isotropic estimators of nongaussianity as well as statistically anisotropic estimators of gaussianity, giving particular emphasis on their signatures and the enhanced “cosmic variances” that become increasingly important as our putative Universe becomes less symmetric.
After reviewing the formalism behind some simple model-independent tests, we discuss how these tests can be applied to CMB data when searching for large-scale “anomalies”.
American Psychological Association (APA)
Abramo, L. Raul& Pereira, Thiago S.. 2010. Testing Gaussianity, Homogeneity, and Isotropy with the Cosmic Microwave Background. Advances in Astronomy،Vol. 2010, no. 2010, pp.1-25.
https://search.emarefa.net/detail/BIM-467292
Modern Language Association (MLA)
Abramo, L. Raul& Pereira, Thiago S.. Testing Gaussianity, Homogeneity, and Isotropy with the Cosmic Microwave Background. Advances in Astronomy No. 2010 (2010), pp.1-25.
https://search.emarefa.net/detail/BIM-467292
American Medical Association (AMA)
Abramo, L. Raul& Pereira, Thiago S.. Testing Gaussianity, Homogeneity, and Isotropy with the Cosmic Microwave Background. Advances in Astronomy. 2010. Vol. 2010, no. 2010, pp.1-25.
https://search.emarefa.net/detail/BIM-467292
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467292