Search Results - "Hare, B. M"

Searching for intra-cloud positive leaders in VHF by Scholten, O., Hare, B. M., Dwyer, J., Liu, N., Sterpka, C., Mulrey, K., Veen, S. Ter

“…We have used the LOw-Frequency ARray (LOFAR) to search for the growing tip of an intra-cloud (IC) positive leader. Even with our most sensitive beamforming…”
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A Strong Pulsing Nature of Negative Intracloud Dart Leaders Accompanied by Regular Trains of Microsecond‐Scale Pulses by Kolmašová, I., Scholten, O., Santolík, O., Hare, B. M., Zacharov, P., Lán, R., Liu, N., Dwyer, J. R.

“…We report the first observations of negative intracloud (IC) dart‐stepped leaders accompanied by regular trains of microsecond‐scale pulses, simultaneously…”
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Small‐Scale Discharges Observed Near the Top of a Thunderstorm by Scholten, O., Hare, B. M., Dwyer, J., Liu, N., Sterpka, C., Assink, J., Leijnse, H., Veen, S. ter

“…We have used the LOw‐Frequency ARray (LOFAR) to image a few lightning flashes during a particularly severe thunderstorm. The images show an exceptional amount…”
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Radio Emission Reveals Inner Meter-Scale Structure of Negative Lightning Leader Steps by Hare, B M, Scholten, O, Dwyer, J, Ebert, U, Nijdam, S, Bonardi, A, Buitink, S, Corstanje, A, Falcke, H, Huege, T, Hörandel, J R, Krampah, G K, Mitra, P, Mulrey, K, Neijzen, B, Nelles, A, Pandya, H, Rachen, J P, Rossetto, L, Trinh, T N G, Ter Veen, S, Winchen, T

“…We use the Low Frequency Array (LOFAR) to probe the dynamics of the stepping process of negatively charged plasma channels (negative leaders) in a lightning…”
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Ground‐level observation of a terrestrial gamma ray flash initiated by a triggered lightning by Hare, B. M., Uman, M. A., Dwyer, J. R., Jordan, D. M., Biggerstaff, M. I., Caicedo, J. A., Carvalho, F. L., Wilkes, R. A., Kotovsky, D. A., Gamerota, W. R., Pilkey, J. T., Ngin, T. K., Moore, R. C., Rassoul, H. K., Cummer, S. A., Grove, J. E., Nag, A., Betten, D. P., Bozarth, A.

“…We report on a terrestrial gamma ray flash (TGF) that occurred on 15 August 2014 coincident with an altitude‐triggered lightning at the International Center…”
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Monte-carlo simulation of the effective lunar aperture for detection of ultra-high energy neutrinos with LOFAR by Krampah, G. K., Buitink, S., Bray, J. D., Corstanje, A., Desmet, M., Falcke, H., Hare, B. M., Hörandel, J. R., Huege, T., Jhansi, V. B., Karastathis, N., Mulrey, K., Mitra, P., Nelles, A., Pandya, H., Scholten, O., ter Veen, S., Thoudam, S., Winchen, T.

“…Ultra-high-energy (UHE) cosmic neutrinos interacting with the Moon’s regolith generate particle showers that emit Askaryan radiation. This radiation can be…”
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A distinct negative leader propagation mode by Scholten, O., Hare, B. M., Dwyer, J., Liu, N., Sterpka, C., Kolmašová, I., Santolík, O., Lán, R., Uhlíř, L., Buitink, S., Corstanje, A., Falcke, H., Huege, T., Hörandel, J. R., Krampah, G. K., Mitra, P., Mulrey, K., Nelles, A., Pandya, H., Rachen, J. P., Trinh, T. N. G., ter Veen, S., Thoudam, S., Winchen, T.

“…The common phenomenon of lightning still harbors many secrets such as what are the conditions for lightning initiation and what is driving the discharge to…”
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Properties of the Lunar Detection Mode for ZeV-Scale Particles with LOFAR by Winchen, T., Bonardi, A., Buitink, S., Corstanje, A., Falcke, H., Hare, B. M., Hörandel, A., Mitra, P., Mulrey, K., Nelles, A., Rachen, J.P., Rossetto, L., Schellart, P., Scholten, O., ter Veen, S., Thoudam, S., Trinh, T.N.G.

“…The steep decrease of the flux of ultra-high energy cosmic rays (UHECR) provides a challenge to answer the long standing question about their origin and…”
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Ultra‐Slow Discharges That Precede Lightning Initiation by Sterpka, C., Dwyer, J., Liu, N., Demers, N., Hare, B. M., Scholten, O., Veen, S.

“…We report on ultra‐slowly propagating discharge events with speeds in the range 1–13 km/s, much lower than any known lightning process. The propagation speeds…”
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Evaluation of ENTLN Performance Characteristics Based on the Ground Truth Natural and Rocket‐Triggered Lightning Data Acquired in Florida by Zhu, Y., Rakov, V. A., Tran, M. D., Stock, M. G., Heckman, S., Liu, C., Sloop, C. D., Jordan, D. M., Uman, M. A., Caicedo, J. A., Kotovsky, D. A., Wilkes, R. A., Carvalho, F. L., Ngin, T., Gamerota, W. R., Pilkey, J. T., Hare, B. M.

“…The performance characteristics of the Earth Networks Total Lightning Network (ENTLN) were evaluated by using as ground truth natural cloud‐to‐ground (CG)…”
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Do cosmic ray air showers initiate lightning?: A statistical analysis of cosmic ray air showers and lightning mapping array data by Hare, B. M., Dwyer, J. R., Winner, L. H., Uman, M. A., Jordan, D. M., Kotovsky, D. A., Caicedo, J. A., Wilkes, R. A., Carvalho, F. L., Pilkey, J. T., Ngin, T. K., Gamerota, W. R., Rassoul, H. K.

“…It has been argued in the technical literature, and widely reported in the popular press, that cosmic ray air showers (CRASs) can initiate lightning via a…”
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The Relationship of Lightning Radio Pulse Amplitudes and Source Altitudes as Observed by LOFAR by Machado, J. G. O., Hare, B. M., Scholten, O., Buitink, S., Corstanje, A., Falcke, H., Hörandel, J. R., Huege, T., Krampah, G. K., Mitra, P., Mulrey, K., Nelles, A., Pandya, H., Rachen, J. P., Thoudam, S., Trinh, T. N. G., ter Veen, S., Winchen, T.

“…When a lightning flash is propagating in the atmosphere it is known that especially the negative leaders emit a large number of very high frequency (VHF) radio…”
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LOFAR Lightning Imaging: Mapping Lightning With Nanosecond Precision by Hare, B. M., Scholten, O., Bonardi, A., Buitink, S., Corstanje, A., Ebert, U., Falcke, H., Hörandel, J. R., Leijnse, H., Mitra, P., Mulrey, K., Nelles, A., Rachen, J. P., Rossetto, L., Rutjes, C., Schellart, P., Thoudam, S., Trinh, T. N. G., ter Veen, S., Winchen, T.

“…Lightning mapping technology has proven instrumental in understanding lightning. In this work we present a pipeline that can use lightning observed by the…”
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Determining Electric Fields in Thunderclouds With the Radiotelescope LOFAR by Trinh, T. N. G., Scholten, O., Buitink, S., Ebert, U., Hare, B. M., Krehbiel, P. R., Leijnse, H., Bonardi, A., Corstanje, A., Falcke, H., Huege, T., Hörandel, J. R., Krampah, G. K., Mitra, P., Mulrey, K., Nelles, A., Pandya, H., Rachen, J. P., Rossetto, L., Rutjes, C., Veen, S., Winchen, T.

“…An analysis is presented of electric fields in thunderclouds using a recently proposed method based on measuring radio emission from extensive air shower…”
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A new parametrization for the radio emission of air showers applied to LOFAR data by Plaisier, I., Bonardi, A., Buitink, S., Corstanje, A., Falcke, H., Hare, B.M., Hörandel, J.R., de Jong, S., Mitra, P., Mulrey, K., Nelles, A., Rachen, J., Rossetto, L., Schellart, P., Scholten, O., ter Veen, S., Thoudam, S., Trinh, T.N.G., Winchen, T.

“…The energy and mass composition of cosmic rays influence how the energy density of the radio emission of air showers is distributed on the ground. A precise…”
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Updated Calibration of the LOFAR Low-Band Antennas by Mulrey, K., Bonardi, A., Buitink, S., Corstanje, A., Falcke, H., Hare, B.M., Hörandel, J., Mitra, P., Nelles, A., Rachen, J.P., Rossetto, L., Schellart, P., Scholten, O., ter Veen, S., Thoudam, S., Trinh, T.N.G., Winchen, T

“…The LOw-Frequency ARray (LOFAR) telescope measures radio emission from air showers. In order to interpret the data, an absolute, frequency dependent…”
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A high-precision interpolation method for pulsed radio signals from cosmic-ray air showers by Corstanje, A, Buitink, S, Desmet, M, Falcke, H, Hare, B. M, Hörandel, J. R, Huege, T, Jhansi, V. B, Karastathis, N, Krampah, G. K, Mitra, P, Mulrey, K, Nelles, A, Nivedita, K, Pandya, H, Scholten, O, Terveer, K, Thoudam, S, Trinh, G, ter Veen, S

“…JINST 18 P09005, 2023 Analysis of radio signals from cosmic-ray induced air showers has been shown to be a reliable method to extract shower parameters such as…”
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Reconstructing Air Shower Parameters with MGMR3D by Mitra, P, Scholten, O, Trinh, T. N. G, Buitink, S, Bhavani, J, Corstanje, A, Desmet, M, Falcke, H, Hare, B. M, Hörandel, J. R, Huege, T, Karastathis, N, Krampah, G. K, Mulrey, K, Nelles, A, Pandya, H, Thoudam, S, de Vries, K. D, ter Veen, S

“…Measuring the radio emission from cosmic ray particle cascades has proven to be a very efficient method to determine their properties such as the mass…”
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The Spontaneous Nature of Lightning Initiation Revealed by Sterpka, C., Dwyer, J., Liu, N., Hare, B. M., Scholten, O., Buitink, S., Veen, S. ter, Nelles, A.

“…Here, we present new radio interferometer beamforming observations of lightning initiation using data from the Low‐Frequency Array (LOFAR). We show that the…”
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Depth of shower maximum and mass composition of cosmic rays from 50 PeV to 2 EeV measured with the LOFAR radio telescope by Corstanje, A, Buitink, S, Falcke, H, Hare, B. M, Hörandel, J. R, Huege, T, Krampah, G. K, Mitra, P, Mulrey, K, Nelles, A, Pandya, H, Rachen, J. P, Scholten, O, ter Veen, S, Thoudam, S, Trinh, G, Winchen, T

“…Phys. Rev. D 103, 102006 (2021) We present an updated cosmic-ray mass composition analysis in the energy range $10^{16.8}$ to $10^{18.3}$ eV from 334 air…”
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