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202. Study of heliospheric effects on galactic cosmic ray fluxes near Earth using low energy modes of the Pierre Auger ObservatoryAhmed Saleh, 2016, objavljeni povzetek znanstvenega prispevka na konferenci Opis: Surface detector array (SD) of the Pierre Auger Observatory has the capability to observe variations in the flux of low energy secondary cosmic ray particles. Flux rates of low energy particles can be obtained either from particle count rates (scaler mode) or from charge distribution of the pulses (histogram mode), detected by individual water Cherenkov detectors (WCD). In scaler mode, SD is sensitive to particles that deposit energy between ∼15 MeV and ∼100 MeV in a WCD, while in histogram mode the deposited energy range can be extended up to ∼1 GeV. These two low energy detection modes are excellent tools for monitoring modulations of the galactic cosmic ray flux, related to solar activity, such as Forbush decreases (with typical duration of several hours to weeks) and Solar cycle (with a duration of several years), as they provide fluxes of cosmic rays with different energies at the same detector. In this contribution we present an analysis of the effects of space weather and space climate on low energy mode data collected by the Pierre Auger Observatory in the period between 2006 and 2013. In particular, we focus on the long term trend of the cosmic ray flux. In addition to the standard corrections for atmospheric effects such as pressure, the analysis takes into account also the corrections for the long term evolution of the response of the surface detectors. Results show good correlation of the corrected low energy mode Auger data with neutron flux measurements by the global neutron monitoring network (NMDB). Ključne besede: Pierre Auger Observatory, Auger low-energy modes, Solar modulation Objavljeno v RUNG: 13.06.2017; Ogledov: 4164; Prenosov: 251 Celotno besedilo (36,34 KB) |
203. Combined fit of spectrum and composition data as measured by the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: kozmični žarki ektremnih energij, medgalaktični prostor, Observatorij Pierre Auger Objavljeno v RUNG: 21.04.2017; Ogledov: 4087; Prenosov: 0 Gradivo ima več datotek! Več... |
204. Search for photons with energies above 10^18 eV using the hybrid detector of the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: ultra high energy (UHE) cosmic rays, cosmic ray experiments, Pierre Auger Observatory, UHE photon search Objavljeno v RUNG: 13.04.2017; Ogledov: 4041; Prenosov: 0 Gradivo ima več datotek! Več... |
205. A targeted search for point sources of EeV photons with the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: astrofizika osnovnih delcev, kozmični žarki, analiza podatkov, izvori visokoenrgijskih fotonov, observatorij Pierre Auger Objavljeno v RUNG: 22.03.2017; Ogledov: 4379; Prenosov: 0 Gradivo ima več datotek! Več... |
206. Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), extensive air showers (EAS), EAS muon content, Auger Muons and Infill for the Ground Array (AMIGA), scintillation modules for muon counting, silicon photomultipliers (SiPM) Objavljeno v RUNG: 08.03.2017; Ogledov: 4239; Prenosov: 1 Gradivo ima več datotek! Več... |
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208. Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, izvirni znanstveni članek Ključne besede: Pierre Auger Observatory (PAO), PAO Surface Detector, energy reconstruction, atmospheric effects Objavljeno v RUNG: 16.02.2017; Ogledov: 4290; Prenosov: 0 Gradivo ima več datotek! Več... |
209. Ultrahigh-energy neutrino follow-up of gravitational wave events GW150914 and GW151226 with the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2016, izvirni znanstveni članek Ključne besede: Visokoenergijski nevtrini, gravitacijski valovi, črne luknje, binarni sistemi, LIGO, Observatorij Pierre Auger Objavljeno v RUNG: 13.01.2017; Ogledov: 4357; Prenosov: 297 Celotno besedilo (978,74 KB) |
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