Fulltext

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

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

In: Proceedings of the International Astronomical Union, 2014, vol. 10, no. S306, p. 64-67

Ajouter à la liste personnelle
    Titre
    • On spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation
    Auteur
    • McEwen, Jason D.. Mullard Space Science Laboratory (MSSL), University College London (UCL), Surrey RH5 6NT, UK email: jason.mcewen@ucl.ac.uk
    • Büttner, Martin. Department of Physics and Astronomy, University College London (UCL), London WC1E 6BT, UK email: martin.buettner.11@ucl.ac.uk, boris.leistedt.11@ucl.ac.uk, h.peiris@ucl.ac.uk
    • Leistedt, Boris. Department of Physics and Astronomy, University College London (UCL), London WC1E 6BT, UK email: martin.buettner.11@ucl.ac.uk, boris.leistedt.11@ucl.ac.uk, h.peiris@ucl.ac.uk
    • Peiris, Hiranya V.. Department of Physics and Astronomy, University College London (UCL), London WC1E 6BT, UK email: martin.buettner.11@ucl.ac.uk, boris.leistedt.11@ucl.ac.uk, h.peiris@ucl.ac.uk
    • Vandergheynst, Pierre. Institute of Electrical Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland email: pierre.vandergheynst@epfl.ch
    • Wiaux, Yves. Institute of Sensors, Signals & Systems, Heriot-Watt University, Edinburgh EH14 4AS, UK email: y.wiaux@hw.ac.uk
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Proceedings of the International Astronomical Union, 2014, vol. 10, no. S306, p. 64-67. Cambridge University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:304001
    Summary
    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