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29 March 2024 |
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Article overview
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Overview of lunar detection of ultra-high energy particles and new plans for the SKA | Clancy W. James
; Jaime Alvarez-Muñiz
; Justin D. Bray
; Stijn Buitink
; Rustam D. Dagkesamanskii
; Ronald D. Ekers
; Heino Falcke
; Ken Gayley
; Tim Huege
; Maaijke Mevius
; Rob Mutel
; Olaf Scholten
; Ralph Spencer
; Sander ter Veen
; Tobias Winchen
; | Date: |
18 Apr 2017 | Abstract: | The lunar technique is a method for maximising the collection area for
ultra-high-energy (UHE) cosmic ray and neutrino searches. The method uses
either ground-based radio telescopes or lunar orbiters to search for Askaryan
emission from particles cascading near the lunar surface. While experiments
using the technique have made important advances in the detection of
nanosecond-scale pulses, only at the very highest energies has the lunar
technique achieved competitive limits. This is expected to change with the
advent of the Square Kilometre Array (SKA), the low-frequency component of
which (SKA-low) is predicted to be able to detect an unprecedented number of
UHE cosmic rays.
In this contribution, the status of lunar particle detection is reviewed,
with particular attention paid to outstanding theoretical questions, and the
technical challenges of using a giant radio array to search for nanosecond
pulses. The activities of SKA’s High Energy Cosmic Particles Focus Group are
described, as is a roadmap by which this group plans to incorporate this
detection mode into SKA-low observations. Estimates for the sensitivity of
SKA-low phases 1 and 2 to UHE particles are given, along with the achievable
science goals with each stage. Prospects for near-future observations with
other instruments are also described. | Source: | arXiv, 1704.5336 | Services: | Forum | Review | PDF | Favorites |
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