Galactic magnetic deflections of UHECRs including realistic random fields

Azadeh Keivani, Glennys Farrar, Michael Sutherland, James Matthews

    Research output: Contribution to journalArticle

    Abstract

    We present the results of a study that simulates trajectories of ultra-high energy cosmic rays from Centaurus A to Earth. The arrival directions are characterized to assess whether Cen A can be identified as a source of cosmic rays based on observing departures from isotropy. We analyze separately particles originating from the central engine as well as from the north and south radio lobes of the Cen A complex. Simulations are performed for particle rigidities from E/Z 2 = EV to 100 EV, thus covering the possibility of primary particles as heavy as Fe nuclei with energies exceeding 50 EeV. The Galactic magnetic field is modeled using the recent work of Jansson and Farrar (JF12) which fitted its parameters to match extragalactic Faraday rotation measures and WMAP7 synchrotron emission maps. We also discuss the effects of an additional turbulent magnetic field on the cosmic ray deflections.

    Original languageEnglish (US)
    Article number012003
    JournalJournal of Physics: Conference Series
    Volume531
    Issue number1
    DOIs
    StatePublished - 2014

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    deflection
    cosmic rays
    interstellar magnetic fields
    isotropy
    Faraday effect
    rigidity
    lobes
    arrivals
    engines
    synchrotrons
    coverings
    trajectories
    nuclei
    energy
    magnetic fields
    simulation

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Galactic magnetic deflections of UHECRs including realistic random fields. / Keivani, Azadeh; Farrar, Glennys; Sutherland, Michael; Matthews, James.

    In: Journal of Physics: Conference Series, Vol. 531, No. 1, 012003, 2014.

    Research output: Contribution to journalArticle

    Keivani, Azadeh ; Farrar, Glennys ; Sutherland, Michael ; Matthews, James. / Galactic magnetic deflections of UHECRs including realistic random fields. In: Journal of Physics: Conference Series. 2014 ; Vol. 531, No. 1.
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