Search for Non-Gaussianities in the WMAP Data with the Scaling Index Method
Joint Authors
Räth, C.
Modest, H.
Banday, A. J.
Morfill, G.
Rossmanith, G.
Górski, K. M.
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-12
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
In the recent years, non-Gaussianity and statistical isotropy of the Cosmic Microwave Background (CMB) was investigated with various statistical measures, first and foremost by means of the measurements of the WMAP satellite.
In this paper, we focus on the analyses that were accomplished with a measure of local type, the so-called Scaling Index Method (SIM).
The SIM is able to detect structural characteristics of a given data set and has proven to be highly valuable in CMB analysis.
It was used for comparing the data set with simulations as well as surrogates, which are full-sky maps generated by randomisation of previously selected features of the original map.
During these investigations, strong evidence for non-Gaussianities as well as asymmetries and local features could be detected.
In combination with the surrogates approach, the SIM detected the highest significances for non-Gaussianity to date.
American Psychological Association (APA)
Rossmanith, G.& Modest, H.& Räth, C.& Banday, A. J.& Górski, K. M.& Morfill, G.. 2011. Search for Non-Gaussianities in the WMAP Data with the Scaling Index Method. Advances in Astronomy،Vol. 2011, no. 2011, pp.1-21.
https://search.emarefa.net/detail/BIM-451892
Modern Language Association (MLA)
Rossmanith, G.…[et al.]. Search for Non-Gaussianities in the WMAP Data with the Scaling Index Method. Advances in Astronomy No. 2011 (2011), pp.1-21.
https://search.emarefa.net/detail/BIM-451892
American Medical Association (AMA)
Rossmanith, G.& Modest, H.& Räth, C.& Banday, A. J.& Górski, K. M.& Morfill, G.. Search for Non-Gaussianities in the WMAP Data with the Scaling Index Method. Advances in Astronomy. 2011. Vol. 2011, no. 2011, pp.1-21.
https://search.emarefa.net/detail/BIM-451892
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-451892