Large scale magnetic field of the Milky Way from WMAP3 data

R. Jansson, G. R. Farrar, A. H. Waelkens, T. A. Ensslin

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    We report on initial results from a project to constrain the large-scale and turbulent magnetic fields of the Milky Way galaxy, which eventually will incorporate all of the relevant observational data. In this paper we fit popular large scale magnetic field models to WMAP3 polarization maps. We find that the polarization data can constrain certain model parameters but does not uniquely determine the best-fit parameters. We also find that the polarization data alone cannot distinguish between model symmetries, e.g., the existence of field reversals. We show how future UHECR data can break this degeneracy.

    Original languageEnglish (US)
    Pages223-226
    Number of pages4
    StatePublished - 2007
    Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico
    Duration: Jul 3 2007Jul 11 2007

    Other

    Other30th International Cosmic Ray Conference, ICRC 2007
    CountryMexico
    CityMerida, Yucatan
    Period7/3/077/11/07

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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