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1.
Measurement of the energy spectrum of cosmic rays with the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Serguei Vorobiov, Lili Yang, Samo Stanič, Ahmed Saleh, Andrej Filipčič, Valerio Verzi, 2016, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...ultra-high energy cosmic rays ( UHECR), Pierre Auger Observatory, UHECR energy spectrum...
Keywords: ultra-high energy cosmic rays (UHECR), Pierre Auger Observatory, UHECR energy spectrum
Published: 17.11.2016; Views: 1949; Downloads: 0
.pdf Fulltext (1,16 MB)

2.
Evidence for a mixed mass composition at the ‘ankle’ in the cosmic-ray spectrum
Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, A. Aab, 2016, original scientific article

Found in: ključnih besedah
Summary of found: ...ultra-high energy cosmic rays ( UHECR), UHECR mass composition, UHECR energy spectrum, Pierre Auger Observatory, compositi...
Keywords: ultra-high energy cosmic rays (UHECR), UHECR mass composition, UHECR energy spectrum, Pierre Auger Observatory, composition studies at the ‘ankle’ region in the UHECR spectrum
Published: 25.11.2016; Views: 2054; Downloads: 109
.pdf Fulltext (1,73 MB)

3.
Auger Highlights
Marko Zavrtanik, Danilo Zavrtanik, Darko Veberič, Samo Stanič, Andrej Filipčič, Antonella Castellina, Gašper Kukec Mezek, Ahmed Saleh, Marta Trini, Serguei Vorobiov, Lili Yang, 2014, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, ultra high energy cosmic rays ( UHECR), UHECR hybrid detection technique, UHECR energy spectrum, UHECR mass...
Keywords: Pierre Auger Observatory, ultra high energy cosmic rays (UHECR), UHECR hybrid detection technique, UHECR energy spectrum, UHECR mass composition, UHECR arrival directions
Published: 20.06.2017; Views: 1719; Downloads: 251
.pdf Fulltext (861,47 KB)

4.
Astroparticles at the High Energy Frontier: Results from the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Serguei Vorobiov, Darko Veberič, Samo Stanič, Ahmed Saleh, Andrej Filipčič, Gonzalo Parente, 2014, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, ultra-high energy cosmic rays ( UHECR), UHECR energy spectrum, mass composition, anisotropies...
Keywords: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), UHECR energy spectrum, mass composition, anisotropies
Published: 20.06.2017; Views: 1646; Downloads: 0
.pdf Fulltext (1,06 MB)

5.
Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, A. Aab, 2017, original scientific article

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, ultra-high energy cosmic rays ( UHECR), UHECR anisotropies, angular power spectrum, needlet wavelet analysis...
Keywords: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), UHECR anisotropies, angular power spectrum, needlet wavelet analysis
Published: 23.06.2017; Views: 1504; Downloads: 0
.pdf Fulltext (1,12 MB)

6.
Results from the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Darko Veberič, Samo Stanič, Andrej Filipčič, Ivan De Mitri, 2015, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, Ultra High Energy Cosmic Rays ( UHECR), UHECR energy spectrum, UHECR mass composition...
Keywords: Pierre Auger Observatory, Ultra High Energy Cosmic Rays (UHECR), UHECR energy spectrum, UHECR mass composition
Published: 27.06.2017; Views: 1467; Downloads: 0
.pdf Fulltext (475,69 KB)

7.
Evidence for Declination Dependence of Ultrahigh Energy Cosmic Ray Spectrum in the Northern Hemisphere
J. P. Lundquist, R.U. Abbasi, 2018, other component parts

Abstract: The energy of the ultrahigh energy spectral cutoff was measured, integrating over the northern hemisphere sky, by the Telescope Array (TA) collaboration, to be 10^19.78±0.06 eV, in agreement with the High Resolution Fly's Eye (HiRes) experiment, whereas the Pierre Auger experiment, integrating over the southern hemisphere sky, measured the cutoff to be at 10^19.62±0.02 eV. An 11% energy scale difference between the TA and Auger does not account for this difference. However, in comparing the spectra of the Telescope Array and Pierre Auger experiments in the band of declination common to both experiments ( −15.7∘<δ<24.8∘ ) we have found agreement in the energy of the spectral cutoff. While the Auger result is essentially unchanged, the TA cutoff energy has changed to 10^19.59±0.06 eV. In this paper we argue that this is an astrophysical effect.
Found in: ključnih besedah
Summary of found: ...Astrophysics, High Energy Astrophysical Phenomena, UHECR, Cosmic Rays, Anisotropy, Energy Spectrum...
Keywords: Astrophysics, High Energy Astrophysical Phenomena, UHECR, Cosmic Rays, Anisotropy, Energy Spectrum
Published: 27.04.2020; Views: 311; Downloads: 13
.pdf Fulltext (687,87 KB)

8.
Supergalactic Structure of Energy-Angle Correlations
P. Sokolsky, J. P. Lundquist, 2020, published scientific conference contribution

Abstract: Evidence for the supergalactic structure of multiplets (energy-angle correlations) has previously been shown using ultra-high energy cosmic ray (UHECR) data from Telescope Array (TA) with energies above 10^19 eV. The supergalactic deflection hypothesis (that UHECR sources and intervening magnetic fields are correlated) is measured by the all-sky behavior of the strength of intermediate-scale correlations. The multiplets are measured in spherical surface wedge bins of the field-of-view to account for uniform and random magnetic fields. The structure found is consistent with the previously published energy spectrum anisotropy results of TA and toy-model simulations of a supergalactic magnetic sheet. The 7 year data post-trial significance of this feature appearing by chance, on an isotropic sky, was found by Monte Carlo simulation to be ∼4σ. The analysis has now been applied to 10 years of data.
Found in: ključnih besedah
Summary of found: ...been shown using ultra-high energy cosmic ray ( UHECR) data from Telescope Array (TA) with energies... ...is consistent with the previously published energy spectrum anisotropy results of TA and toy-model simulations...
Keywords: Cosmic rays, UHECR, energy spectrum, magnetic deflection, large-scale structure, supergalactic, multiplets
Published: 27.04.2020; Views: 249; Downloads: 13
.pdf Fulltext (1,66 MB)

9.
Supergalactic Structure of Multiplets with the Telescope Array Surface Detector
P. Sokolsky, J. P. Lundquist, 2019, published scientific conference contribution

Abstract: Evidence of supergalactic structure of multiplets has been found for ultra-high energy cosmic rays (UHECR) with energies above 10^19 eV using 7 years of data from the Telescope Array (TA) surface detector. The tested hypothesis is that UHECR sources, and intervening magnetic fields, may be correlated with the supergalactic plane, as it is a fit to the average matter density within the GZK horizon. This structure is measured by the average behavior of the strength of intermediate-scale correlations between event energy and position (multiplets). These multiplets are measured in wedge-like shapes on the spherical surface of the fieldof-view to account for uniform and random magnetic fields. The evident structure found is consistent with toy-model simulations of a supergalactic magnetic sheet and the previously published Hot/Coldspot results of TA. The post-trial probability of this feature appearing by chance, on an isotropic sky, is found by Monte Carlo simulation to be ~4.5σ.
Found in: ključnih besedah
Summary of found: ...been found for ultra-high energy cosmic rays ( UHECR) with energies above 10^19 eV using 7... ...UHECR, cosmic rays, energy spectrum, anisotropy, large-scale structure, magnetic deflection...
Keywords: UHECR, cosmic rays, energy spectrum, anisotropy, large-scale structure, magnetic deflection
Published: 28.04.2020; Views: 271; Downloads: 18
.pdf Fulltext (1,38 MB)

10.
Evidence of Intermediate-Scale Energy Spectrum Anisotropy in the Northern Hemisphere from Telescope Array
J. P. Lundquist, 2018, published scientific conference contribution

Abstract: Evidence of an energy dependent intermediate-scale anisotropy has been found in the arrival directions of ultra-high energy cosmic rays in the northern hemisphere, using 7 years of TA surface detector data. The previously reported ``hot spot" excess E ≥ 10^19.75 EeV is found to correspond to a deficit, or ``cold spot," of events for 10^19.2≤ E < 10^19.75 EeV. This feature suggests energy dependent magnetic deflection of cosmic-rays. The global post-trial significance of the energy spectrum deviation is found to be 3.74σ.
Found in: ključnih besedah
Summary of found: ... UHECR, cosmic rays, energy spectrum, anisotropy, magnetic deflection...
Keywords: UHECR, cosmic rays, energy spectrum, anisotropy, magnetic deflection
Published: 28.04.2020; Views: 273; Downloads: 13
.pdf Fulltext (4,87 MB)

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