Prospects for GMRT to Observe Radio Waves from UHE Particles Interacting with the Moon

Details Prospects for GMRT to Observe Radio Waves from UHE Particles Interacting with the Moon Prospects for GMRT to Observe Radio Waves from UHE Particles Interacting with the Moon

2007-08-13

arxiv.org/abs/0708.1683v1

JCAP0711:022,2007

Astronomy and Astrophysics

Astrophysics

21 pages, 9 figures

Scientific paper

10.1088/1475-7516/2007/11/022

Ultra high energy (UHE) particles of cosmic origin impact the lunar regolith and produce radio signals through Askaryan effect, signals that can be detected by Earth based radio telescopes. We calculate the expected sensitivity for observation of such events at the Giant Metrewave Radio Telescope (GMRT), both for UHE cosmic rays (CR) and UHE neutrino interactions. We find that for 30 days of observation time a significant number of detectable events is expected above $10^{20}$ eV for UHECR or neutrino fluxes close to the current limits. Null detection over a period of 30 days will lower the experimental bounds on UHE particle fluxes by magnitudes competitive to both present and future experiments at the very highest energies.

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