&lt;title&gt;Study of atmosphere characteristics using ultra-high energy cosmic ray and λ = 532nm LIDAR&lt;/title&gt;

Кнуренко, С. П.; Nikolashkin, S. V.; Сабуров, А. В.; Sleptsov, I. E.

doi:10.1117/12.723220

Cited by 15 publications

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“…Therefore, to avoid additional errors in the analysis we selected EAS events when weather conditions were good and excellent, i.e. at P λ > 0,58 [4]. …”

Section: Experimental Datamentioning

confidence: 99%

“…6b, it is clear that over the past 10 years number of cyclones from eastern and southern directions has increased. Quantitative evaluation of the integral coefficient of transparency for different optical states of the atmosphere was obtained by us in [4,5] points directly to it. Here we used an adaptive method for solving inverse problems.…”

Section: Experimental Datamentioning

confidence: 99%

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Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Кнуренко

Petrov

2014

20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…Therefore, to avoid additional errors in the analysis we selected EAS events when weather conditions were good and excellent, i.e. at P λ > 0,58 [4]. …”

Section: Experimental Datamentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Кнуренко

Petrov

2014

20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…The duty cycle of the array is from September to April, during moonless, clear nights. Figure 3 shows the work time of the array by years for the whole observation period and average spectral transparency of the atmosphere for wavelength 430 nm [8].…”

Section: Observationsmentioning

confidence: 99%

“…during winter above the array sits an abnormal atmosphere the properties of which change dramatically from autumn to winter and vice versa. Because of that, continuous observations of the atmosphere during periods of optical observations are conducted at the Yakutsk array [8,9] and data on the transparency of the atmosphere are taken into account in the determination of some characteristics of air showers.…”

Section: Precision Of Obtained Air Shower Characteristicsmentioning

confidence: 99%

Ultra-high energy cosmic rays: 40 years retrospective of continuous observations at the Yakutsk array: Part 1. Cosmic ray spectrum in the energy range 10¹⁵–10¹⁸ eV and its interpretation

Кнуренко

Petrov

Петров

et al. 2015

EPJ Web of Conferences

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Abstract. The experimental data on the cosmic ray energy spectrum obtained from the Small Cherenkov Array in Yakutsk on the measurement of Cherenkov radiation in showers with energy 10 15 -10 18 eV are discussed. The data were obtained by means of continuous array operation since 1994. The all particle spectrum in this energy region was found to have a complex shape and cannot be described by a simple exponential function with a single slope indicator, g. After the first kink at energy 3 · 10 15 eV (knee), the spectrum becomes steeper at γ = 0.4 up to energy < 2 · 10 16 eV, then part of the spectrum becomes flat to >8 ·10 16 eV, the slope of the spectrum is 2.92 ± 0.03 and then again changes slope by γ = 0.32 ± 0.05 from about ∼2·10 17 eV. The second kink in the spectrum observed at the Yakutsk EAS array at ∼2·10 17 eV, or also called second knee, is a significant result for space astrophysics of ultra-high cosmic rays. In this paper we discuss possible scenarios for spectrum formation of cosmic rays by galactic sources to energies < 10 17 eV, mainly supernovae remnants (SNR) and Metagalactic origins in the energy range 10 17 -10 18 eV. Most likely, that measurement of the second knee is related with the transitional region, galactic to extragalactic origin of cosmic rays.

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“…As can be seen from equation (3.1), the method takes into account the physics of the development of the electron-photon shower component and the characteristics of atmospheric conditions during the Cherenkov radiation observation [9,10] in the region of the Yakutsk EAS array. Using this technique, an EAS database with a reconstructed cascade curve was created and a sample of X max showers was made.…”

Section: Reconstruction Of Eas Development Cascade Curvementioning

confidence: 99%

Longitudinal development of EAS in the energy range $10^{15} - 10^{20}$ eV by observation in the period of 1994-2014 at the Yakutsk

Кнуренко¹,

Petrov²,

Петров³

et al. 2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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The paper presents air shower data with Cherenkov radiation for the period 1994-2014. The energy interval 10 15 -10 20 eV and zenith angle θ = 0 • -55 • was considered. Dependence of average depth of maximum development of air showers on air shower energy are found. Fluctuation of X max are determined. Comparison of the experimental data with the calculations based on the QGSjetII-04 model for the primary proton and iron nuclei is presented. Mass composition of primary cosmic rays in the wide range of energies are made by interpolation.

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<title>Study of atmosphere characteristics using ultra-high energy cosmic ray and λ = 532nm LIDAR</title>

Cited by 15 publications

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Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Ultra-high energy cosmic rays: 40 years retrospective of continuous observations at the Yakutsk array: Part 1. Cosmic ray spectrum in the energy range 10¹⁵–10¹⁸ eV and its interpretation

Longitudinal development of EAS in the energy range $10^{15} - 10^{20}$ eV by observation in the period of 1994-2014 at the Yakutsk

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<title>Study of atmosphere characteristics using ultra-high energy cosmic ray and λ = 532nm LIDAR</title>

Cited by 15 publications

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Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Atmospheric circulation influence during winter on change of air pressure, temperature and spectral transparency at Yakutsk Array

Ultra-high energy cosmic rays: 40 years retrospective of continuous observations at the Yakutsk array: Part 1. Cosmic ray spectrum in the energy range 1015–1018 eV and its interpretation

Longitudinal development of EAS in the energy range $10^{15} - 10^{20}$ eV by observation in the period of 1994-2014 at the Yakutsk

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Ultra-high energy cosmic rays: 40 years retrospective of continuous observations at the Yakutsk array: Part 1. Cosmic ray spectrum in the energy range 10¹⁵–10¹⁸ eV and its interpretation