GMRT观测UHE粒子与月球相互作用电波的前景
Prospects for GMRT to Observe Radio Waves from UHE Particles Interacting with the Moon
摘要：
来自宇宙的超高能粒子撞击月球表层，通过阿斯卡里安效应产生无线电信号，这些信号可以被地球上的射电望远镜探测到。我们计算了在巨型米波射电望远镜（GMRT）观测此类事件的预期灵敏度，无论是UHE宇宙射线（CR）和UHE中微子相互作用。我们发现，对于30天的观测时间，一个显着数量的可检测的事件，预计以上$10^{20}$ eV的UHECR或中微子通量接近目前的限制。在30天的时间内，探测器将降低UHE粒子通量的实验界限，其幅度与目前和未来的最高能量实验具有竞争力。
英文摘要：
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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