On spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation

Jason D McEwen, Martin Buttner, Boris Leistedt, Hiranya V. Peiris, Pierre Vandergheynst, Yves Wiaux

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A new spin wavelet transform on the sphere is proposed to analyse the polarisation of the cosmic microwave background (CMB), a spin ±2 signal observed on the celestial sphere. The scalar directional scale-discretised wavelet transform on the sphere is extended to analyse signals of arbitrary spin. The resulting spin scale-discretised wavelet transform probes the directional intensity of spin signals. A procedure is presented using this new spin wavelet transform to recover E- and B-mode signals from partial-sky observations of CMB polarisation.
Original languageEnglish
Pages (from-to)64-67
Number of pages4
JournalProceedings of the International Astronomical Union
Volume10
Issue numberS306
DOIs
Publication statusPublished - Jul 2015
EventIAU Symposium 306: Statistical Challenges in 21st Century Cosmology - Pavilhão do Conhecimento, Lisbon, Portugal
Duration: 25 May 201429 May 2014

Keywords

  • cosmology: cosmic microwave background
  • cosmology: early universe
  • cosmology: observations
  • methods: data analysis
  • techniques: image processing

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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