Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Sander ter Veen"'
Autor:
Brian Hare, Olaf Scholten, Stijn Buitink, Joseph Dwyer, Ningyu Liu, Chris Sterpka, Sander ter Veen
Lightning dart and recoil leaders are difficult to understand, as they have a different (often smoother) propagation mode than stepped leaders, and re-ionize a previously ionized channel. In order to understand them better, we have imaged recoil lead
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::750b97eeb4b39a6c35ba5b152e3d485d
https://doi.org/10.5194/egusphere-egu23-12591
https://doi.org/10.5194/egusphere-egu23-12591
Autor:
G. K. Krampah, Godwin K. Krampah, Brian Hare, Stijn Buitink, Sander ter Veen, Arthur Corstanje, Jörg P. Rachen, Olaf Scholten, Jörg R. Hörandel, T. N. G. Trinh, A. Nelles, Satyendra Thoudam, Pragati Mitra, Kathrine Mulrey, Tim Huege, Tobias Winchen, Hershel Pandya, Heino Falcke
Publikováno v:
Proceedings of Science, 395, 1148, pp. 1-8
Proceedings of Science, 395, 1-8
Proceedings of Science, 395, 1-8
Contains fulltext : 236332.pdf (Publisher’s version ) (Open Access)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f66d3723fd23423f2ba4026d301d4064
https://hdl.handle.net/2066/236332
https://hdl.handle.net/2066/236332
Autor:
Christopher Francis Sterpka, Joseph R Dwyer, Ningyu Liu, Nicholas R Demers, Brian Hare, Olaf Scholten, Sander ter Veen
Publikováno v:
Geophysical research letters, 49. AMER GEOPHYSICAL UNION
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 of these discharges are orders of magnitude slower than leader or streamer speeds, but fast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20c68aa0427296ceef57549b29b7ef71
https://doi.org/10.1029/2022gl101597
https://doi.org/10.1029/2022gl101597
Autor:
Joeri van Leeuwen, Eric Kooistra, Leon Oostrum, Liam Connor, Jonathan E. Hargreaves, Yogesh Maan, Inés Pastor-Marazuela, Emily Petroff, Daniel van der Schuur, Alessio Sclocco, Samayra M. Straal, Dany Vohl, Stefan J. Wijnholds, Elizabeth A. K. Adams, Björn Adebahr, Jisk Attema, Cees Bassa, Jeanette E. Bast, Anna Bilous, Willem J. G. de Blok, Oliver M. Boersma, Wim A. van Cappellen, Arthur H. W. M. Coolen, Sieds Damstra, Helga Dénes, Ger N. J. van Diepen, David W. Gardenier, Yan G. Grange, André W. Gunst, Kelley M. Hess, Hanno Holties, Thijs van der Hulst, Boudewijn Hut, Alexander Kutkin, G. Marcel Loose, Danielle M. Lucero, Ágnes Mika, Klim Mikhailov, Raffaella Morganti, Vanessa A. Moss, Henk Mulder, Menno J. Norden, Tom A. Oosterloo, Emaneula Orrú, Zsolt Paragi, Jan-Pieter R. de Reijer, Arno P. Schoenmakers, Klaas J. C. Stuurwold, Sander ter Veen, Yu-Yang Wang, Alwin W. Zanting, Jacob Ziemke
Publikováno v:
Astronomy & Astrophysics. 672:A117
Fast radio bursts (FRBs) must be powered by uniquely energetic emission mechanisms. This requirement has eliminated a number of possible source types, but several remain. Identifying the physical nature of FRB emitters arguably requires good localisa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdbc98d599ee66b65ff9ce1578033b0f
https://doi.org/10.1051/0004-6361/202244107
https://doi.org/10.1051/0004-6361/202244107
Autor:
Brian Hare, Olaf Scholten, Joseph Dwyer, Ningyu Liu, Chris Strepka, Stijn Buitink, Sander ter Veen
We have recently developed a new 3D beamforming algorithm, using data from the LOw Frequency ARray (LOFAR) radio telescope (in the 30-80 MHz band), that is capable of resolving even the most complex lightning phenomena with meter and nanosecond scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f09a74b844579c194090ac7015d73be8
https://doi.org/10.5194/egusphere-egu22-7791
https://doi.org/10.5194/egusphere-egu22-7791
Autor:
Olaf Scholten, Brian Hare, Joe Dwyer, Ningyu Liu, Chris Sterpka, Stijn Buitink, Sander ter Veen
We have developed a time-resolved interferometric imaging in 3D (TRI-D) method for LOFAR data where the signals of 400 individual antennas are added coherently. This allows us to reach an even better resolution in 3D than with our original impulsive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::600242efcd7442131f2cad04a24f3453
https://doi.org/10.5194/egusphere-egu22-5965
https://doi.org/10.5194/egusphere-egu22-5965
Autor:
Stijn Buitink, Katie Mulrey, Tobias Winchen, Arthur Corstanje, Heino Falcke, Anna Nelles, H. Pandya, Gia Trinh, Jörg P. Rachen, Jörg R. Hörandel, Olaf Scholten, G. K. Krampah, Pragati Mitra, Brian Hare, Tim Huege, Sander ter Veen, Satyendra Thoudam
Publikováno v:
Proceedings of Science, 395, 0322, pp. 1-8
Proceedings of Science, 395, 1-8
Scopus-Elsevier
Proceedings of Science, 395, 1-8
Scopus-Elsevier
We present an updated analysis of the mass composition of cosmic rays in the energy range of $10^{16.8}$ to $10^{18.3}$ eV. It is based on measurements with the LOFAR telescope of the depth of shower maximum, $X_{\rm max}$. We review the improvements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39b3d3ecf1add1e2bcd026022d8a6734
https://doi.org/10.22323/1.395.0322
https://doi.org/10.22323/1.395.0322
Autor:
Katharine Mulrey, Anna Nelles, Heino Falcke, Brian Hare, H. Pandya, Sander ter Veen, C. W. James, Satyendra Thoudam, Gia Trinh, Tim Huege, Pragati Mitra, Stijn Buitink, G. K. Krampah, Arthur Corstanje, Jörg P. Rachen, Jörg R. Hörandel, Tobias Winchen, Olaf Scholten
Publikováno v:
Proceedings of Science, 395, 1-8
Proceedings of Science, 395, pp. 1-8
Scopus-Elsevier
Proceedings of Science, 395, pp. 1-8
Scopus-Elsevier
The low frequency segment of SKA in Australia will have an extremely dense antenna array spanning an area of roughly 0.5 km$^2$. It offers unique possibilities for high‐resolution observations of air showers. Compared to LOFAR, it will have a much
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1abeaf022d3b501642b3274274d21e36
http://hdl.handle.net/2066/249222
http://hdl.handle.net/2066/249222
Autor:
H. Dénes, S. M. Straal, Tom Oosterloo, Thijs van der Hulst, A. Kutkin, Joeri van Leeuwen, Dany Vohl, Henk Mulder, Jisk Attema, W. J. G. de Blok, M. J. Norden, Alessio Sclocco, Oliver M. Boersma, Á. Mika, S. Damstra, Sander ter Veen, Stefan J. Wijnholds, Kelley M. Hess, Emanuela Orrú, Daniel van der Schuur, Elizabeth A. K. Adams, E. Kooistra, Liam Connor, A. H. W. M. Coolen, Yogesh Maan, R. Smits, M. Ruiter, L. C. Oostrum, D. M. Lucero, Inés Pastor-Marazuela, B. Hut, Emily Petroff, V. Marianna Ivashina, A. V. Bilous, B. Adebahr, G. Marcel Loose, Vanessa A. Moss
Publikováno v:
Nature, 596(7873), 505-508. Nature Publishing Group
Nature, 596, 505-508. Nature Publishing Group
Nature, 596, 505-508. Nature Publishing Group
Fast radio bursts (FRBs) are extragalactic astrophysical transients whose brightness requires emitters that are highly energetic, yet compact enough to produce the short, millisecond-duration bursts. FRBs have thus far been detected between 300 MHz a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e4eed79c61ff93ccb41fb95057ca2fb
https://dare.uva.nl/personal/pure/en/publications/chromatic-periodic-activity-down-to-120megahertz-in-a-fast-radio-burst(8b02035b-9095-4478-b58f-a0fcbd2324ec).html
https://dare.uva.nl/personal/pure/en/publications/chromatic-periodic-activity-down-to-120megahertz-in-a-fast-radio-burst(8b02035b-9095-4478-b58f-a0fcbd2324ec).html
Autor:
Anna Nelles, Antonio Bonardi, Laura Rossetto, Olaf Scholten, Satyendra Thoudam, Pragati Mitra, Tobias Winchen, Sander ter Veen, Jörg P. Rachen, Jörg R. Hörandel, Heino Falcke, Stijn Buitink, Katie Mulrey, Arthur Corstanje, Pim Schellart, Gia Trinh, J. Emilio Enriquez
Publikováno v:
Epj Web of Conferences, 135, 1-6
EPJ Web of Conferences, 135
EPJ Web of Conferences, Vol 135, p 01009 (2017)
NARCIS
DOAJ-Articles
EPJ Web of Conferences, 135, 1-6
EPJ Web of Conferences, 135, pp. 1-6
EPJ Web of Conferences, 135:01009. EDP Sciences
EPJ Web of Conferences, 135
EPJ Web of Conferences, Vol 135, p 01009 (2017)
NARCIS
DOAJ-Articles
EPJ Web of Conferences, 135, 1-6
EPJ Web of Conferences, 135, pp. 1-6
EPJ Web of Conferences, 135:01009. EDP Sciences
In the dense core of LOFAR individual air showers are detected by hundreds of dipole antennas simultaneously. We reconstruct X max by using a hybrid technique that combines a two-dimensional fit of the radio profile to CoREAS simulations and a one-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e56ce09b4c7f7a8b568a6f48842a59c5
https://hdl.handle.net/2066/173507
https://hdl.handle.net/2066/173507