Large-angular-scale clustering as a clue to the source of UHECRs

Andreas A. Berlind, Glennys R. Farrar

    Research output: Contribution to conferencePaperpeer-review


    We show that future Ultra-High Energy Cosmic Ray samples should be able to distinguish whether the sources of UHECRs are hosted by galaxy clusters or ordinary galaxies, or whether the sources are uncorrelated with the large-scale structure of the universe. Moreover, this is true independently of arrival direction uncertainty due to magnetic deflection or measurement error. The reason for this is the simple property that the strength of large-scale clustering for extragalactic sources depends on their mass, with more massive objects, such as galaxy clusters, clustering more strongly than lower mass objects, such as ordinary galaxies.

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


    Other30th International Cosmic Ray Conference, ICRC 2007
    CityMerida, Yucatan

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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