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11.
Search for EeV protons of galactic origin
J. P. Lundquist, R.U. Abbasi, 2016, original scientific article

Abstract: Cosmic rays in the energy range 10^18.0–10^18.5 eV are thought to have a light, probably protonic, composition. To study their origin one can search for anisotropy in their arrival directions. Extragalactic cosmic rays should be isotropic, but galactic cosmic rays of this type should be seen mostly along the galactic plane, and there should be a shortage of events coming from directions near the galactic anticenter. This is due to the fact that, under the influence of the galactic magnetic field, the transition from ballistic to diffusive behavior is well advanced, and this qualitative picture persists over the whole energy range. Guided by models of the galactic magnetic field that indicate that the enhancement along the galactic plane should have a standard deviation of about 20° in galactic latitude, and the deficit in the galactic anticenter direction should have a standard deviation of about 50° in galactic longitude, we use the data of the Telescope Array surface detector in 10^18.0 to 10^18.5 eV energy range to search for these effects. The data are isotropic. Neither an enhancement along the galactic plane nor a deficit in the galactic anticenter direction is found. Using these data we place an upper limit on the fraction of EeV cosmic rays of galactic origin at 1.3% at 95% confidence level.
Found in: ključnih besedah
Summary of found: ...use the data of the Telescope Array surface detector in 10^18.0 to 10^18.5 eV energy...
Keywords: Cosmic ray, Galactic protons, Telescope array, Surface detector
Published: 30.04.2020; Views: 1499; Downloads: 0
.pdf Fulltext (840,97 KB)

12.
CORSIKA Simulation of the Telescope Array Surface Detector
J. P. Lundquist, T. Abu-Zayyad, 2014, original scientific article

Abstract: The Telescope Array is the largest experiment studying ultra-high energy cosmic rays in the northern hemisphere. The detection area of the experiment consists of an array of 507 surface detectors, and a fluorescence detector divided into three sites at the periphery. The viewing directions of the 38 fluorescence telescopes point over the air space above the surface array. In this paper, we describe a technique that we have developed for simulating the response of the array of surface detectors of the Telescope Array experiment. The two primary components of this method are (a) the generation of a detailed CORSIKA Monte Carlo simulation with all known characteristics of the data, and (b) the validation of the simulation by a direct comparison with the Telescope Array surface detector data. This technique allows us to make a very accurate calculation of the acceptance of the array. We also describe a study of systematic uncertainties in this acceptance calculation.
Found in: ključnih besedah
Keywords: cosmic ray, extensive air shower, simulation, surface detector
Published: 19.05.2020; Views: 1384; Downloads: 0
.pdf Fulltext (534,39 KB)

13.
Test benches for the upgrade of the Pierre AugerObservatory electronics
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Martina Boháčová, 2019, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, surface detector station, electronics, test benches...
Keywords: Pierre Auger Observatory, surface detector station, electronics, test benches
Published: 16.06.2020; Views: 1341; Downloads: 48
.pdf Fulltext (735,82 KB)

14.
15.
New Electronics for the Surface Detectors of the Pierre Auger Observatory
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, D. Nitz, 2019, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...energy cosmic rays, Pierre Auger Observatory, AugerPrime detector upgrade, Auger Surface Detectors, electronics...
Keywords: ultra-high energy cosmic rays, Pierre Auger Observatory, AugerPrime detector upgrade, Auger Surface Detectors, electronics
Published: 24.07.2020; Views: 1277; Downloads: 45
.pdf Fulltext (7,57 MB)

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17.
Bounds on diffuse and point source fluxes of ultra-high energy neutrinos with the Pierre Auger Observatory
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Francisco Pedreira, 2019, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, Auger Surface Detector, search for ultra-high energy (UHE) neutrinos,...
Keywords: Pierre Auger Observatory, Auger Surface Detector, search for ultra-high energy (UHE) neutrinos, upper limits on diffuse and point source UHE neutrino fluxes
Published: 21.12.2020; Views: 1086; Downloads: 36
.pdf Fulltext (447,71 KB)

18.
Estimating the Depth of Shower Maximum using the Surface Detectors of the Pierre Auger Observatory
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Carlos José Todero Peixoto, 2019, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...cosmic rays (UHECR), extensive air showers, Auger Surface Detector (SD) array, depth of shower maximum...
Keywords: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), extensive air showers, Auger Surface Detector (SD) array, depth of shower maximum
Published: 21.12.2020; Views: 1030; Downloads: 35
.pdf Fulltext (850,78 KB)

19.
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