Search for point sources of ultra-high-energy cosmic rays above 4.0 × 1019 eV using a maximum likelihood ratio test

R. U. Abbasi, T. Abu-Zayyad, J. F. Amann, G. Archbold, R. Atkins, J. A. Bellido, K. Belov, J. W. Betz, S. Y. Ben-Zvi, D. R. Bergman, J. H. Boyer, G. W. Burt, Z. Cao, R. W. Clay, B. M. Connolly, B. R. Dawson, W. Deng, G. R. Farrar, Y. Fedorova, J. FindlayC. B. Finley, W. F. Hanlon, C. M. Hoffman, M. H. Holzscheiter, G. A. Hughes, P. Hüntemeyer, C. C H Jui, K. Kim, M. A. Kirn, B. C. Knapp, E. C. Loh, M. M. Maestas, N. Manago, E. J. Mannel, L. J. Marek, K. Martens, J. A J Matthews, J. N. Matthews, A. O'Neill, C. A. Painter, L. Perera, K. Reil, R. Riehle, M. D. Roberts, M. Sasaki, S. R. Schnetzer, M. Seman, K. M. Simpson, G. Sinnis, J. D. Smith, R. Snow, P. Sokolsky, C. Song, R. W. Springer, B. T. Stokes, J. R. Thomas, S. B. Thomas, G. B. Thomson, D. Tupa, S. Westerhoff, L. R. Wiencke, A. Zech

    Research output: Contribution to journalArticle

    Abstract

    We present the results of a search for cosmic-ray point sources at energies in excess of 4.0 × 1019 eV in the combined data sets recorded by the Akeno Giant Air Shower Array and High Resolution Fly's Eye stereo experiments. The analysis is based on a maximum likelihood ratio test using the probability density function for each event rather than requiring an a priori choice of a fixed angular bin size. No statistically significant clustering of events consistent with a point source is found.

    Original languageEnglish (US)
    Pages (from-to)164-170
    Number of pages7
    JournalAstrophysical Journal
    Volume623
    Issue number1 I
    DOIs
    StatePublished - Apr 10 2005

    Fingerprint

    likelihood ratio
    cosmic ray
    point sources
    point source
    cosmic rays
    cosmic ray showers
    probability density function
    probability density functions
    energy
    high resolution
    air
    experiment
    test
    analysis

    Keywords

    • Acceleration of particles
    • Cosmic rays
    • Large-scale structure of universe

    ASJC Scopus subject areas

    • Space and Planetary Science

    Cite this

    Abbasi, R. U., Abu-Zayyad, T., Amann, J. F., Archbold, G., Atkins, R., Bellido, J. A., ... Zech, A. (2005). Search for point sources of ultra-high-energy cosmic rays above 4.0 × 1019 eV using a maximum likelihood ratio test. Astrophysical Journal, 623(1 I), 164-170. https://doi.org/10.1086/428570

    Search for point sources of ultra-high-energy cosmic rays above 4.0 × 1019 eV using a maximum likelihood ratio test. / Abbasi, R. U.; Abu-Zayyad, T.; Amann, J. F.; Archbold, G.; Atkins, R.; Bellido, J. A.; Belov, K.; Betz, J. W.; Ben-Zvi, S. Y.; Bergman, D. R.; Boyer, J. H.; Burt, G. W.; Cao, Z.; Clay, R. W.; Connolly, B. M.; Dawson, B. R.; Deng, W.; Farrar, G. R.; Fedorova, Y.; Findlay, J.; Finley, C. B.; Hanlon, W. F.; Hoffman, C. M.; Holzscheiter, M. H.; Hughes, G. A.; Hüntemeyer, P.; Jui, C. C H; Kim, K.; Kirn, M. A.; Knapp, B. C.; Loh, E. C.; Maestas, M. M.; Manago, N.; Mannel, E. J.; Marek, L. J.; Martens, K.; Matthews, J. A J; Matthews, J. N.; O'Neill, A.; Painter, C. A.; Perera, L.; Reil, K.; Riehle, R.; Roberts, M. D.; Sasaki, M.; Schnetzer, S. R.; Seman, M.; Simpson, K. M.; Sinnis, G.; Smith, J. D.; Snow, R.; Sokolsky, P.; Song, C.; Springer, R. W.; Stokes, B. T.; Thomas, J. R.; Thomas, S. B.; Thomson, G. B.; Tupa, D.; Westerhoff, S.; Wiencke, L. R.; Zech, A.

    In: Astrophysical Journal, Vol. 623, No. 1 I, 10.04.2005, p. 164-170.

    Research output: Contribution to journalArticle

    Abbasi, RU, Abu-Zayyad, T, Amann, JF, Archbold, G, Atkins, R, Bellido, JA, Belov, K, Betz, JW, Ben-Zvi, SY, Bergman, DR, Boyer, JH, Burt, GW, Cao, Z, Clay, RW, Connolly, BM, Dawson, BR, Deng, W, Farrar, GR, Fedorova, Y, Findlay, J, Finley, CB, Hanlon, WF, Hoffman, CM, Holzscheiter, MH, Hughes, GA, Hüntemeyer, P, Jui, CCH, Kim, K, Kirn, MA, Knapp, BC, Loh, EC, Maestas, MM, Manago, N, Mannel, EJ, Marek, LJ, Martens, K, Matthews, JAJ, Matthews, JN, O'Neill, A, Painter, CA, Perera, L, Reil, K, Riehle, R, Roberts, MD, Sasaki, M, Schnetzer, SR, Seman, M, Simpson, KM, Sinnis, G, Smith, JD, Snow, R, Sokolsky, P, Song, C, Springer, RW, Stokes, BT, Thomas, JR, Thomas, SB, Thomson, GB, Tupa, D, Westerhoff, S, Wiencke, LR & Zech, A 2005, 'Search for point sources of ultra-high-energy cosmic rays above 4.0 × 1019 eV using a maximum likelihood ratio test', Astrophysical Journal, vol. 623, no. 1 I, pp. 164-170. https://doi.org/10.1086/428570
    Abbasi, R. U. ; Abu-Zayyad, T. ; Amann, J. F. ; Archbold, G. ; Atkins, R. ; Bellido, J. A. ; Belov, K. ; Betz, J. W. ; Ben-Zvi, S. Y. ; Bergman, D. R. ; Boyer, J. H. ; Burt, G. W. ; Cao, Z. ; Clay, R. W. ; Connolly, B. M. ; Dawson, B. R. ; Deng, W. ; Farrar, G. R. ; Fedorova, Y. ; Findlay, J. ; Finley, C. B. ; Hanlon, W. F. ; Hoffman, C. M. ; Holzscheiter, M. H. ; Hughes, G. A. ; Hüntemeyer, P. ; Jui, C. C H ; Kim, K. ; Kirn, M. A. ; Knapp, B. C. ; Loh, E. C. ; Maestas, M. M. ; Manago, N. ; Mannel, E. J. ; Marek, L. J. ; Martens, K. ; Matthews, J. A J ; Matthews, J. N. ; O'Neill, A. ; Painter, C. A. ; Perera, L. ; Reil, K. ; Riehle, R. ; Roberts, M. D. ; Sasaki, M. ; Schnetzer, S. R. ; Seman, M. ; Simpson, K. M. ; Sinnis, G. ; Smith, J. D. ; Snow, R. ; Sokolsky, P. ; Song, C. ; Springer, R. W. ; Stokes, B. T. ; Thomas, J. R. ; Thomas, S. B. ; Thomson, G. B. ; Tupa, D. ; Westerhoff, S. ; Wiencke, L. R. ; Zech, A. / Search for point sources of ultra-high-energy cosmic rays above 4.0 × 1019 eV using a maximum likelihood ratio test. In: Astrophysical Journal. 2005 ; Vol. 623, No. 1 I. pp. 164-170.
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    abstract = "We present the results of a search for cosmic-ray point sources at energies in excess of 4.0 × 1019 eV in the combined data sets recorded by the Akeno Giant Air Shower Array and High Resolution Fly's Eye stereo experiments. The analysis is based on a maximum likelihood ratio test using the probability density function for each event rather than requiring an a priori choice of a fixed angular bin size. No statistically significant clustering of events consistent with a point source is found.",
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    AU - Abbasi, R. U.

    AU - Abu-Zayyad, T.

    AU - Amann, J. F.

    AU - Archbold, G.

    AU - Atkins, R.

    AU - Bellido, J. A.

    AU - Belov, K.

    AU - Betz, J. W.

    AU - Ben-Zvi, S. Y.

    AU - Bergman, D. R.

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    AU - Connolly, B. M.

    AU - Dawson, B. R.

    AU - Deng, W.

    AU - Farrar, G. R.

    AU - Fedorova, Y.

    AU - Findlay, J.

    AU - Finley, C. B.

    AU - Hanlon, W. F.

    AU - Hoffman, C. M.

    AU - Holzscheiter, M. H.

    AU - Hughes, G. A.

    AU - Hüntemeyer, P.

    AU - Jui, C. C H

    AU - Kim, K.

    AU - Kirn, M. A.

    AU - Knapp, B. C.

    AU - Loh, E. C.

    AU - Maestas, M. M.

    AU - Manago, N.

    AU - Mannel, E. J.

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    AU - Martens, K.

    AU - Matthews, J. A J

    AU - Matthews, J. N.

    AU - O'Neill, A.

    AU - Painter, C. A.

    AU - Perera, L.

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    AU - Roberts, M. D.

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    AU - Schnetzer, S. R.

    AU - Seman, M.

    AU - Simpson, K. M.

    AU - Sinnis, G.

    AU - Smith, J. D.

    AU - Snow, R.

    AU - Sokolsky, P.

    AU - Song, C.

    AU - Springer, R. W.

    AU - Stokes, B. T.

    AU - Thomas, J. R.

    AU - Thomas, S. B.

    AU - Thomson, G. B.

    AU - Tupa, D.

    AU - Westerhoff, S.

    AU - Wiencke, L. R.

    AU - Zech, A.

    PY - 2005/4/10

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    N2 - We present the results of a search for cosmic-ray point sources at energies in excess of 4.0 × 1019 eV in the combined data sets recorded by the Akeno Giant Air Shower Array and High Resolution Fly's Eye stereo experiments. The analysis is based on a maximum likelihood ratio test using the probability density function for each event rather than requiring an a priori choice of a fixed angular bin size. No statistically significant clustering of events consistent with a point source is found.

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    KW - Acceleration of particles

    KW - Cosmic rays

    KW - Large-scale structure of universe

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