کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1770934 | 1020711 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Search for correlations between HiRes stereo events and active galactic nuclei
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 30, Issue 4, November 2008, Pages 175-179
Journal: Astroparticle Physics - Volume 30, Issue 4, November 2008, Pages 175-179
نویسندگان
R.U. Abbasi, T. Abu-Zayyad, M. Allen, J.F. Amman, G. Archbold, K. Belov, J.W. Belz, S.Y. BenZvi, D.R. Bergman, S.A. Blake, J.H. Boyer, O.A. Brusova, G.W. Burt, C. Cannon, Z. Cao, W. Deng, Y. Fedorova, J. Findlay, X. Zhang,