Bounds on the Density of Sources of Ultra-High Energy Cosmic Rays from the Pierre Auger Observatory - INSPIRE

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Bounds on the Density of Sources of Ultra-High Energy Cosmic Rays from the Pierre Auger Observatory

Pierre Auger

Collaboration

•

Pedro Abreu
(
- Lisbon, IST and
- LIP, Lisbon
)

May 7, 2013

25 pages

Published in:

JCAP 05 (2013) 009

Published: May 9, 2013

e-Print:

1305.1576 [astro-ph.HE]

DOI:

10.1088/1475-7516/2013/05/009

Report number:

FERMILAB-PUB-13-148-AD-AE-CD-TD

Experiments:

AUGER

View in:

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Abstract: (IOP)

We derive lower bounds on the density of sources of ultra-high energy cosmic rays from the lack of significant clustering in the arrival directions of the highest energy events detected at the Pierre Auger Observatory. The density of uniformly distributed sources of equal intrinsic intensity was found to be larger than ~ (0.06−5) × 10(−)(4) Mpc(−)(3) at 95% CL, depending on the magnitude of the magnetic deflections. Similar bounds, in the range (0.2−7) × 10(−)(4) Mpc(−)(3), were obtained for sources following the local matter distribution.

Note:

25 pages, 6 figures

ultra high energy cosmic rays
cosmic ray experiments
cosmic radiation: UHE
deflection: magnetic
density
observatory
Auger

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Figures(7)

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