The pierre auger observatory scaler mode for the study of solar activity modulation of galactic cosmic rays

The Pierre Auger Collaboration, G. Farrar

    Research output: Contribution to journalArticle

    Abstract

    Since data-taking began in January 2004, the Pierre Auger Observatory has been recording the count rates of low energy secondary cosmic ray particles for the self-calibration of the ground detectors of its surface detector array. After correcting for atmospheric effects, modulations of galactic cosmic rays due to solar activity and transient events are observed. Temporal variations related with the activity of the heliosphere can be determined with high accuracy due to the high total count rates. In this study, the available data are presented together with an analysis focused on the observation of Forbush decreases, where a strong correlation with neutron monitor data is found.

    Original languageEnglish (US)
    Article numberP01003
    JournalJournal of Instrumentation
    Volume6
    Issue number1
    DOIs
    StatePublished - 2011

    Fingerprint

    scalers
    Cosmic rays
    Cosmic Rays
    Observatories
    solar activity
    Observatory
    observatories
    Modulation
    secondary cosmic rays
    Forbush decreases
    Detectors
    modulation
    atmospheric effects
    heliosphere
    detectors
    Count
    Detector
    Atmospheric Effects
    Self-calibration
    monitors

    Keywords

    • Cherenkov detectors
    • Large detector systems for particle and astroparticle physics
    • Particle detectors

    ASJC Scopus subject areas

    • Instrumentation
    • Mathematical Physics

    Cite this

    The pierre auger observatory scaler mode for the study of solar activity modulation of galactic cosmic rays. / The Pierre Auger Collaboration; Farrar, G.

    In: Journal of Instrumentation, Vol. 6, No. 1, P01003, 2011.

    Research output: Contribution to journalArticle

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    abstract = "Since data-taking began in January 2004, the Pierre Auger Observatory has been recording the count rates of low energy secondary cosmic ray particles for the self-calibration of the ground detectors of its surface detector array. After correcting for atmospheric effects, modulations of galactic cosmic rays due to solar activity and transient events are observed. Temporal variations related with the activity of the heliosphere can be determined with high accuracy due to the high total count rates. In this study, the available data are presented together with an analysis focused on the observation of Forbush decreases, where a strong correlation with neutron monitor data is found.",
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    AU - The Pierre Auger Collaboration

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    AU - Ahn, E. J.

    AU - Allard, D.

    AU - Allekotte, I.

    AU - Allen, J.

    AU - Alvarez Castillo, J.

    AU - Alvarez-Muñiz, J.

    AU - Ambrosio, M.

    AU - Aminaei, A.

    AU - Anchordoqui, L.

    AU - Andringa, S.

    AU - Antičić, T.

    AU - Anzalone, A.

    AU - Aramo, C.

    AU - Arganda, E.

    AU - Arisaka, K.

    AU - Arqueros, F.

    AU - Asorey, H.

    AU - Assis, P.

    AU - Aublin, J.

    AU - Ave, M.

    AU - Avenier, M.

    AU - Avila, G.

    AU - Bäcker, T.

    AU - Badagnani, D.

    AU - Balzer, M.

    AU - Barber, K. B.

    AU - Barbosa, A. F.

    AU - Bardenet, R.

    AU - Barroso, S. L C

    AU - Baughman, B.

    AU - Beatty, J. J.

    AU - Becker, B. R.

    AU - Becker, K. H.

    AU - Bellétoile, A.

    AU - Bellido, J. A.

    AU - BenZvi, S.

    AU - Berat, C.

    AU - Bergmann, T.

    AU - Bertou, X.

    AU - Biermann, P. L.

    AU - Billoir, P.

    AU - Blanco, F.

    AU - Blanco, M.

    AU - Bleve, C.

    AU - Blümer, H.

    AU - Boháčová, M.

    AU - Farrar, G.

    AU - Zaw, Ingyin

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    KW - Cherenkov detectors

    KW - Large detector systems for particle and astroparticle physics

    KW - Particle detectors

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