Realtime processing of LOFAR data for the detection of nano-second pulses from the Moon
Lofar Cosmic Ray Ksp T, Winchen T, Bonardi A, Buitink S, Corstanje A, Enriquez JE, Falcke H, Hörandel JR, Mitra P, Mulrey K, Nelles A, Rachen JP, Rossetto L, Schellart P, Scholten O, Thoudam S, Trinh TN, Ter Veen S (2017)
Publication Type: Conference contribution
Publication year: 2017
Publisher: Institute of Physics Publishing
Book Volume: 898
Conference Proceedings Title: Journal of Physics: Conference Series
Event location: San Francisco, CA, USA
DOI: 10.1088/1742-6596/898/3/032004
Abstract
The low flux of the ultra-high energy cosmic rays (UHECR) at the highest energies provides a challenge to answer the long standing question about their origin and nature. Even lower fluxes of neutrinos with energies above 1022 eV are predicted in certain Grand-Unifying-Theories (GUTs) and e.g. models for super-heavy dark matter (SHDM). The significant increase in detector volume required to detect these particles can be achieved by searching for the nanosecond radio pulses that are emitted when a particle interacts in Earth's moon with current and future radio telescopes. In this contribution we present the design of an online analysis and trigger pipeline for the detection of nano-second pulses with the LOFAR radio telescope. The most important steps of the processing pipeline are digital focusing of the antennas towards the Moon, correction of the signal for ionospheric dispersion, and synthesis of the time-domain signal from the polyphased-filtered signal in frequency domain. The implementation of the pipeline on a GPU/CPU cluster will be discussed together with the computing performance of the prototype.
Authors with CRIS profile
Involved external institutions
Vrije Universiteit Brussel (VUB)
Belgium (BE)
Radboud University Nijmegen
Netherlands (NL)
University of Groningen / Rijksuniversiteit Groningen
Netherlands (NL)
Astron
Netherlands (NL)
Belgium (BE)
Radboud University Nijmegen
Netherlands (NL)
University of Groningen / Rijksuniversiteit Groningen
Netherlands (NL)
Astron
Netherlands (NL)
How to cite
APA:
Lofar Cosmic Ray Ksp, T., Winchen, T., Bonardi, A., Buitink, S., Corstanje, A., Enriquez, J.E.,... Ter Veen, S. (2017). Realtime processing of LOFAR data for the detection of nano-second pulses from the Moon. In Journal of Physics: Conference Series. San Francisco, CA, USA: Institute of Physics Publishing.
MLA:
Lofar Cosmic Ray Ksp, The, et al. "Realtime processing of LOFAR data for the detection of nano-second pulses from the Moon." Proceedings of the 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, CA, USA Institute of Physics Publishing, 2017.
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