Search for correlations between HiRes stereo events and active galactic nuclei

被引：91

作者：

Abbasi, R. U. ^{[2
]}

Abu-Zayyad, T. ^{[2
]}

Allen, M. ^{[2
]}

Amman, J. F. ^{[3
]}

Archbold, G. ^{[2
]}

Belov, K. ^{[2
]}

Belz, J. W. ^{[4
]}

BenZvi, S. Y. ^{[2
]}

Bergman, D. R. ^{[1
]}

Blake, S. A. ^{[2
]}

Boyer, J. H. ^{[5
,6
]}

Brusova, O. A. ^{[2
]}

Burt, G. W. ^{[2
]}

Cannon, C. ^{[2
]}

Cao, Z. ^{[2
]}

Deng, W. ^{[2
]}

Fedorova, Y. ^{[2
]}

Findlay, J. ^{[2
]}

Finley, C. B. ^{[5
,6
]}

Gray, R. C. ^{[2
]}

Hanlon, W. F. ^{[2
]}

Hoffman, C. M. ^{[3
]}

Holzscheiter, M. H. ^{[3
]}

Hughes, G. ^{[1
]}

Huentemeyer, P. ^{[2
]}

Ivanov, D. ^{[1
]}

Jones, B. F. ^{[2
]}

Jui, C. C. H. ^{[2
]}

Kim, K. ^{[2
]}

Kirn, M. A. ^{[4
]}

Knapp, B. C. ^{[5
,6
]}

Loh, E. C. ^{[2
]}

Maestas, M. M. ^{[2
]}

Manago, N. ^{[7
]}

Mannel, E. J. ^{[5
,6
]}

Marek, L. J. ^{[3
]}

Martens, K. ^{[2
]}

Matthews, J. N. ^{[2
]}

Moore, S. A. ^{[2
]}

O'Neill, A. ^{[5
,6
]}

Painter, C. A. ^{[3
]}

Perera, L. ^{[1
]}

Reil, K. ^{[2
]}

Riehle, R. ^{[2
]}

Roberts, M. D. ^{[8
]}

Rodriguez, D. ^{[2
]}

Sasaki, N. ^{[7
]}

Schnetzer, S. R. ^{[1
]}

Scott, L. M. ^{[1
]}

Seman, M. ^{[5
,6
]}

机构：

[1] Rutgers State Univ, Piscataway, NJ 08854 USA

[2] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[4] Montana State Univ, Dept Phys, Bozeman, MT 59812 USA

[5] Columbia Univ, Dept Phys, New York, NY 10027 USA

[6] Columbia Univ, Nevis Lab, New York, NY 10027 USA

[7] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[8] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

来源：

ASTROPARTICLE PHYSICS | 2008年 / 30卷 / 04期

基金：

美国国家科学基金会;

关键词：

Active galactic nuclei; Ultrahigh energy cosmic rays; Anisotropy;

D O I：

10.1016/j.astropartphys.2008.08.004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have searched for correlations between the pointing directions of ultrahigh energy cosmic rays observed by the High Resolution Fly's Eye experiment and active galactic nuclei (AGN) visible from its northern hemisphere location. No correlations, other than random correlations, have been found. We report our results using search parameters prescribed by the Pierre Auger collaboration. Using these parameters, the Auger collaboration concludes that a positive correlation exists for Sources visible to their Southern hemisphere location. We also describe results using two methods for determining the chance probability of correlations: one in which a hypothesis is formed from scanning one half of the data and tested on the second half, and another which involves a scan over the entire data set. The most significant correlation found Occurred with a chance probability of 24%. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：175 / 179

页数：5

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