Principles of Synchrotron Emission in an Astrophysical Context

Huege, T.; Falcke, H.

doi:10.1007/1-4020-2406-1_2

Cited by 2 publications

(3 citation statements)

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“…The CR energy range for which one achieves both a reasonable signal-to-noise ratio and a reasonable event rate depends on the number of dipoles actually employed. A single LOFAR-type station of about 100 dipoles, for example, would be useful for measurements in the range 10 15 -10 17 eV; indeed just such a prototype station, known as LOPES [81], is scheduled to be operational in 2003 at the KASCADE experiment. Falcke and Gorham [80] estimate that LOFAR should be able to observe events up to 10 20 eV at a rate of order 1 per year.…”

Section: Radio Detection Techniquesmentioning

confidence: 99%

Ultrahigh Energy Cosmic Rays: The State of the Art Before the Auger Observatory

Anchordoqui

Paul

Reucroft

et al. 2003

Int. J. Mod. Phys. A

116

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In this review we discuss the important progress made in recent years towards understanding the experimental data on cosmic rays with energies ≳ 1019eV. We begin with a brief survey of the available data, including a description of the energy spectrum, mass composition, and arrival directions. At this point we also give a short overview of experimental techniques. After that, we introduce the fundamentals of acceleration and propagation in order to discuss the conjectured nearby cosmic ray sources. We then turn to theoretical notions of physics beyond the Standard Model where we consider both exotic primaries and exotic physical laws. Particular attention is given to the role that TeV-scale gravity could play in addressing the origin of the highest energy cosmic rays. In the final part of the review we discuss the potential of future cosmic ray experiments for the discovery of tiny black holes that should be produced in the earth's atmosphere if TeV-scale gravity is realized in Nature.

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Section: Radio Detection Techniquesmentioning

confidence: 99%

Ultrahigh Energy Cosmic Rays: The State of the Art Before the Auger Observatory

Anchordoqui

Paul

Reucroft

et al. 2003

Int. J. Mod. Phys. A

116

View full text Add to dashboard Cite

show abstract

“…LOPES is operating jointly with the KASCADE Grande air shower array in Karlsruhe (Schieler et al 2003); LOFAR is a funded effort to develop a very large area ground array for radio astronomy in the HF to VHF regime, sharing many common interests with the SKA. The LOPES group has recently published a detailed analysis of the geosynchrotron model for the case of a 10 17 eV air shower (Huege & Falcke 2002 in preparation for a major effort at an electro-dynamical air shower Monte Carlo code (Huege & Falcke 2004).…”

Section: Modeling By the Lopes Collaborationmentioning

confidence: 99%

“…In particular, this implies that the emission is actually not dominated by a narrow region around the shower maximum, but that the entire shower evolution contributes. A realistic treatment of the integration over the shower as a whole is carried out as part of the upcoming Monte Carlo simulations of the LOPES collaboration (Huege & Falcke 2004).…”

Section: Modeling By the Lopes Collaborationmentioning

confidence: 99%

Prospects for radio detection of ultra-high energy cosmic rays and neutrinos

Falcke

Gorham

Protheroe

2004

New Astronomy Reviews

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The origin and nature of the highest energy cosmic ray events is currently the subject of intense investigation by giant air shower arrays and fluorescent detectors. These particles reach energies well beyond what can be achieved in ground-based particle accelerators and hence they are fundamental probes for particle physics as well as astrophysics. One of the main topics today focuses on the high energy end of the spectrum and the potential for the production of high-energy neutrinos. Above about 10 20 eV cosmic rays from extragalactic sources are expected to be severely attenuated by pion photoproduction interactions with photons of the cosmic microwave background. Investigating the shape of the cosmic ray spectrum near this predicted cut-off will be very important. In addition, a significant high-energy neutrino background is naturally expected as part of the pion decay chain which also contains much information.Because of the scarcity of these high-energy particles, larger and larger ground-based detectors have been built. The new generation of digital radio telescopes may play an important role in this, if properly designed. Radio detection of cosmic ray showers has a long history but was abandoned in the 1970's. Recent experimental developments together with sophisticated air shower simulations incorporating radio emission give a clearer understanding of the relationship between the air shower parameters and the radio signal, and have led to resurgence in its use. Observations of air showers by the SKA could, because of its large collecting area, contribute significantly to measuring the cosmic ray spectrum at the highest energies. Because of the large surface area of the moon, and the expected excellent angular resolution of the SKA, using the SKA to detect radio Cherenkov emission from neutrino-induced cascades in lunar regolith will be potentially the most important technique for investigating cosmic ray origin at energies above the photoproduction cut-off.

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Principles of Synchrotron Emission in an Astrophysical Context

Cited by 2 publications

References 4 publications

Ultrahigh Energy Cosmic Rays: The State of the Art Before the Auger Observatory

Ultrahigh Energy Cosmic Rays: The State of the Art Before the Auger Observatory

Prospects for radio detection of ultra-high energy cosmic rays and neutrinos

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