Zobrazeno 1 - 10
of 123
pro vyhledávání: '"R. J. Protheroe"'
Autor:
Jaime Alvarez-Muñiz, Ralph Spencer, S. ter Veen, Heino Falcke, R. L. Mutel, R. J. Protheroe, T. Huege, Maaijke Mevius, Olaf Scholten, Stijn Buitink, Ken Gayley, Ronald D. Ekers, Justin D. Bray, C. W. James, R. D. Dagkesamanskii
Publikováno v:
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015).
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 radio telescope, and searching for the characteristic nanosecond-scale As
Autor:
C. W. James, R. J. Protheroe, Ron Ekers, Rebecca McFadden, Jaime Alvarez-Muñiz, Chris Phillips, Paul Roberts, Justin D. Bray
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 410:885-889
We present the first observational limits to the ultra-high energy (UHE) neutrino flux from the Galactic Center, and from Centaurus A which is the nearest active galactic nucleus (AGN). These results are based on our "Lunar UHE Neutrino Astrophysics
Publikováno v:
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 604, S106-S111
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 604, 1-2, pp. S106-S111
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 604, 1-2, pp. S106-S111
The lunar radio Cherenkov technique uses the moon as a large-volume detector for ultra-high energy (UHE) cosmic rays and neutrinos. We review the issues and techniques needed for sensitive radio detection of nanosecond pulses from UHE neutrino events
Autor:
Bruce R. Dawson, Roger W Clay, A. G. K. Smith, N.R. Wild, Victor Stamatescu, R. J. Protheroe, Gavin Rowell, G. J. Thornton
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 588:48-51
Results in TeV γ -ray astronomy of recent years (in particular from H.E.S.S.) point to a population of γ -ray sources at energies E > 10 TeV . This provides strong impetus for future studies in the multi-TeV energy range. This key energy range addr
Publikováno v:
Publications of the Astronomical Society of Australia. 25:161-166
We report radio continuum observations with the Australia Telescope Compact Array of two molecular clouds. The impetus for these observations is a search for synchrotron radiation by cosmic ray secondary electrons/positrons in a region of enhanced de
Autor:
Gregory Benford, R. J. Protheroe
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 383:663-672
Remnants of AGN jets and their surrounding cocoons leave colossal magnetohydrodynamic (MHD) fossil structures storing total energies ~10^{60} erg. The original active galacic nucleus (AGN) may be dead but the fossil will retain its stable configurati
Autor:
J. D. O'Sullivan, Roland M. Crocker, R. J. Protheroe, Timothy H. Hankins, Ron Ekers, C. W. James
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 379:1037-1041
The first search for ultra-high energy (UHE) neutrinos using a radio telescope was conducted by Hankins, Ekers and O'Sullivan (1996). This was a search for nanosecond duration radio Cherenkov pulses from electromagnetic cascades initiated by ultra-hi
Autor:
C. W. James, Stijn Buitink, Heino Falcke, Ken Gayley, Justin D. Bray, F. Schroeder, Ronald D. Ekers, Maaijke Mevius, Ralph Spencer, S. ter Veen, R. J. Protheroe, T. Huege, Olaf Scholten, Jaime Alvarez-Muñiz, R. L. Mutel, Rustam D. Dagkesamanskii
Publikováno v:
Advancing Astrophysics with the square kilometre array
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 deflections to be used for directional studies, and their flux is so l
Autor:
R. J. Protheroe, Chris Phillips, M. G. Aartsen, Paul Roberts, Rebecca McFadden, Justin D. Bray, John Reynolds, Ronald D. Ekers, C. W. James
Publikováno v:
Physical Review D. 91
We report a limit on the ultra-high-energy neutrino flux based on a non-detection of radio pulses from neutrino-initiated particle cascades in the Moon, in observations with the Parkes radio telescope undertaken as part of the LUNASKA project. Due to
Autor:
John Reynolds, R. J. Protheroe, M. G. Aartsen, Justin D. Bray, Ronald D. Ekers, Paul Roberts, Rebecca McFadden, Chris Phillips, C. W. James
We describe an experiment using the Parkes radio telescope in the 1.2-1.5 GHz frequency range as part of the LUNASKA project, to search for nanosecond-scale pulses from particle cascades in the Moon, which may be triggered by ultra-high-energy astrop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f829f678993f5b5304a7714299eb64b
http://arxiv.org/abs/1412.4418
http://arxiv.org/abs/1412.4418