218 citations · 2.1k across the 56 of their papers we have counts for
24 papers · 1 filter
Beyond : Reconstructing Air Shower Profiles with Information Field Theory with SKA-Low
Keito Watanabe, Tim Huege, Torsten Enßlin +33
While radio measurements of extensive air showers have shown to achieve a high precision of sensitivity, it has been shown that parameters beyond …
A high-precision interpolation method for pulsed radio signals from cosmic-ray air showers
A. Corstanje, S. Buitink, M. Desmet +17
Analysis of radio signals from cosmic-ray induced air showers has been shown to be a reliable method to extract shower parameters such as primary energy and depth of shower maximum…
Calibration of the LOFAR low-band antennas using the Galaxy and a model of the signal chain
K. Mulrey, A. Bonardi, S. Buitink +15
The LOw-Frequency ARray (LOFAR) is used to make precise measurements of radio emission from extensive air showers, yielding information about the primary cosmic ray. Interpreting t…
Overview of lunar detection of ultra-high energy particles and new plans for the SKA
Clancy W. James, Jaime Alvarez-Muñiz, Justin D. Bray +12
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 telescope…
Thunderstorm electric fields probed by extensive air showers through their polarized radio emission
T. N. G. Trinh, O. Scholten, A. Bonardi +17
We observe a large fraction of circular polarization in radio emission from extensive air showers recorded during thunderstorms, much higher than in the emission from air showers m…
Realtime processing of LOFAR data for the detection of nano-second pulses from the Moon
T. Winchen, A. Bonardi, S. Buitink +14
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 lowe…
Measurement of the circular polarization in radio emission from extensive air showers confirms emission mechanisms
O. Scholten, T. N. G. Trinh, A. Bonardi +16
We report here on a novel analysis of the complete set of four Stokes parameters that uniquely determine the linear and/or circular polarization of the radio signal for an extensiv…
Search for Cosmic Particles with the Moon and LOFAR
T. Winchen, A. Bonardi, S. Buitink +14
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. A signifi…
LBCS: the LOFAR Long-Baseline Calibrator Survey
N. Jackson, A. Tagore, A. Deller +76
(abridged). We outline LBCS (the LOFAR Long-Baseline Calibrator Survey), whose aim is to identify sources suitable for calibrating the highest-resolution observations made with the…
The lunar Askaryan technique with the Square Kilometre Array
Clancy W. James, Jaime Alvarez-Muniz, Justin D. Bray +12
The lunar Askaryan technique is a method to study the highest-energy cosmic rays, and their predicted counterparts, the ultra-high-energy neutrinos. By observing the Moon with a ra…
The lunar Askaryan technique: a technical roadmap
J. D. Bray, J. Alvarez-Muniz, S. Buitink +12
The lunar Askaryan technique, which involves searching for Askaryan radio pulses from particle cascades in the outer layers of the Moon, is a method for using the lunar surface as…
The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results
G. H. Heald, R. F. Pizzo, E. Orrú +147
We present the Multifrequency Snapshot Sky Survey (MSSS), the first northern-sky LOFAR imaging survey. In this introductory paper, we first describe in detail the motivation and de…
Calibrating the absolute amplitude scale for air showers measured at LOFAR
A. Nelles, J. R. Hörandel, T. Karskens +74
Air showers induced by cosmic rays create nanosecond pulses detectable at radio frequencies. These pulses have been measured successfully in the past few years at the LOw Frequency…
Measurement of the cosmic-ray energy spectrum above eV with the LOFAR Radboud Air Shower Array
S. Thoudam, S. Buitink, A. Corstanje +11
The energy reconstruction of extensive air showers measured with the LOFAR Radboud Air Shower Array (LORA) is presented in detail. LORA is a particle detector array located in the…
Measuring a Cherenkov ring in the radio emission from air showers at 110-190 MHz with LOFAR
A. Nelles, P. Schellart, S. Buitink +66
Measuring radio emission from air showers offers a novel way to determine properties of the primary cosmic rays such as their mass and energy. Theory predicts that relativistic tim…
A method for high precision reconstruction of air shower Xmax using two-dimensional radio intensity profiles
S. Buitink, A. Corstanje, J. E. Enriquez +10
The mass composition of cosmic rays contains important clues about their origin. Accurate measurements are needed to resolve long-standing issues such as the transition from Galact…
Lunar detection of ultra-high-energy cosmic rays and neutrinos with the Square Kilometre Array
J. D. Bray, J. Alvarez-Muñiz, S. Buitink +12
The origin of the most energetic particles in nature, the ultra-high-energy (UHE) cosmic rays, is still a mystery. Only the most energetic of these have sufficiently small angular…
Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz
H. K. Vedantham, L. V. E. Koopmans, A. G. de Bruyn +91
We present radio observations of the Moon between and MHz to demonstrate a novel technique of interferometrically measuring large-scale diffuse emission extending far bey…
Detecting cosmic rays with the LOFAR radio telescope
P. Schellart, A. Nelles, S. Buitink +102
The low frequency array (LOFAR), is the first radio telescope designed with the capability to measure radio emission from cosmic-ray induced air showers in parallel with interferom…
Searching for Neutrino Radio Flashes from the Moon with LOFAR
Stijn Buitink, Arthur Corstanje, Emilio Enriquez +11
Ultra-high-energy neutrinos and cosmic rays produce short radio flashes through the Askaryan effect when they impact on the Moon. Earthbound radio telescopes can search the Lunar s…
Initial deep LOFAR observations of Epoch of Reionization windows: I. The North Celestial Pole
S. Yatawatta, A. G. de Bruyn, M. A. Brentjens +86
The aim of the LOFAR Epoch of Reionization (EoR) project is to detect the spectral fluctuations of the redshifted HI 21cm signal. This signal is weaker by several orders of magnitu…
Optimized Trigger for Ultra-High-Energy Cosmic-Ray and Neutrino Observations with the Low Frequency Radio Array
K. Singh, M. Mevius, O. Scholten +100
When an ultra-high energy neutrino or cosmic ray strikes the Lunar surface a radio-frequency pulse is emitted. We plan to use the LOFAR radio telescope to detect these pulses. In t…
Observing pulsars and fast transients with LOFAR
B. W. Stappers, J. W. T. Hessels, A. Alexov +91
Low frequency radio waves, while challenging to observe, are a rich source of information about pulsars. The LOw Frequency ARray (LOFAR) is a new radio interferometer operating in…
An air shower array for LOFAR: LORA
S. Thoudam, G. v. Aar, M. v. d. Akker +10
LOFAR is a new form of radio telescope which can detect radio emission from air showers induced by very high-energy cosmic rays. It can also look for radio emission from particle c…