The galactic magnetic field and UHECR optics

Glennys R. Farrar, Nafiun Awal, Deepak Khurana, Michael Sutherland

    Research output: Contribution to journalConference article

    Abstract

    A good model of the Galactic magnetic field is crucial for estimating the Galactic contribution in dark matter and CMB-cosmology studies, determining the sources of UHECRs, and also modeling the transport of Galactic CRs since the halo field provides an important escape route for by diffusion along its field lines. We briefly review the observational foundations of the Jansson- Farrar 2012 model for the large scale structure of the GMF, underscoring the robust evidence for a N-to-S directed, spiraling halo field. New results on the lensing effect of the GMF on UHECRs are presented, displaying multiple images and dramatic magnification and demagnification that varies with source direction and CR rigidity.

    Original languageEnglish (US)
    Article number560
    JournalProceedings of Science
    Volume30-July-2015
    StatePublished - Jan 1 2015
    Event34th International Cosmic Ray Conference, ICRC 2015 - The Hague, Netherlands
    Duration: Jul 30 2015Aug 6 2015

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    ASJC Scopus subject areas

    • General

    Cite this

    Farrar, G. R., Awal, N., Khurana, D., & Sutherland, M. (2015). The galactic magnetic field and UHECR optics. Proceedings of Science, 30-July-2015, [560].