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42. Astroparticle studies at the Pierre Auger ObservatoryLili Yang, predavanje na tuji univerzi Opis: The Pierre Auger Observatory (PAO), the world’s largest cosmic ray detector combines a large surface detector (SD) with an air fluorescence detector (FD). It is designed to observe extensive air showers (EAS) of billions of secondary particles induced by the UHECRs in the earths’ atmosphere. The “hybrid” design (i.e., detected simultaneously by SD and FD) provides wealth of information about shower development and excellent event reconstruction. Together with observations of UHECRs, the Surface Detector (SD) of the PAO is sensitive to UHE neutrinos through the observation of deeply initiated inclined down-going showers produced by neutrino interactions in the atmosphere, which method has been well established. On the other hand, high-energy photons can also be discriminated from background of charged cosmic rays based on their characters of the shower front. In this talk, I will give a review on recent results from PAO and introduce the ultra-high energy multi-messenger studies from PAO.
Najdeno v: ključnih besedah
Povzetek najdenega: ...Pierre Auger Observatory (PAO), the world’s largest cosmic ray detector combines a large surface detector... ...be discriminated from background of charged cosmic rays based on their characters of the shower...
Ključne besede: Pierre Auger Observatory, cosmic rays, ultra-high energy
Objavljeno: 17.01.2018; Ogledov: 1173; Prenosov: 0
 Polno besedilo (8,86 MB)
Gradivo ima več datotek! Več...
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43. Very high-energy gamma-ray signature of ultrahigh-energy cosmic-ray acceleration in Centaurus AJagdish Joshi, Marlui Miranda, Lili Yang, Soebur Razzaque, 2017, objavljeni povzetek znanstvenega prispevka na konferenci Opis: The association of at least a dozen ultrahigh-energy cosmic-ray (UHECR) events with energy 54 EeV or higher detected by the Pierre Auger Observatory from the direction of Centaurus-A, the nearest radio galaxy, supports the scenario of UHECR acceleration in the jets of radio galaxies. Multiwavelength observations of Centaurus-A suggest that the inner jet is likely the site for particle acceleration, which emits in X-ray to very high-energy (VHE) gamma-ray. We model broadband spectral energy distribution with emission from shock-accelerated electrons and protons in a combined synchrotron-self-Compton and photo-hadronic scenario. The UHECR flux from Centaurus-A, required to explain Pierre Auger data, successfully explains observed VHE gamma rays as photo-hadronic emission.
Najdeno v: ključnih besedah
Povzetek najdenega: ...Auger data, successfully explains observed VHE gamma rays as photo-hadronic emission....
Ključne besede: Centaurus A, gamma ray, cosmic rays
Objavljeno: 17.01.2018; Ogledov: 1150; Prenosov: 0
Polno besedilo (2,27 MB) |
44. An Indication of Anisotropy in Arrival Directions of Ultra-high-energy Cosmic Rays through Comparison to the Flux Pattern of Extragalactic Gamma-Ray SourcesMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, A. Aab, 2018, izvirni znanstveni članek Najdeno v: ključnih besedah
Ključne besede: astroparticle physics, cosmic rays, active galaxies, starburst galaxies, data analysis methods
Objavljeno: 14.02.2018; Ogledov: 1136; Prenosov: 0
Polno besedilo (2,83 MB) |
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46. A new method to determine the energy scale for high-energy cosmic rays using radio measurements at the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Raphael Krause, 2017, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah
Ključne besede: energy scale, cosmic rays, radio measurements, Pierre Auger Observatory
Objavljeno: 16.02.2018; Ogledov: 1013; Prenosov: 81
Polno besedilo (3,64 MB) |
47. Dipolar anisotropy of cosmic rays above 8 EeVMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Oscar Taborda, 2017, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah
Ključne besede: Pierre Auger Observatory, dipolar anisotropy, cosmic rays
Objavljeno: 16.02.2018; Ogledov: 959; Prenosov: 83
Polno besedilo (411,21 KB) |
48. Arrival directions of the highest-energy cosmic rays detected by the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Ugo Giaccari, 2017, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah
Ključne besede: Arrival directions, highest-energy cosmic rays, Pierre Auger Observatory
Objavljeno: 16.02.2018; Ogledov: 1002; Prenosov: 100
Polno besedilo (2,58 MB) |
49. Probing Lorentz symmetry with the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, D. Boncioli, 2017, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah
Povzetek najdenega: ...Observatory, Lorentz invariance violation, ultra-high energy cosmic rays...
Ključne besede: Pierre Auger Observatory, Lorentz invariance violation, ultra-high energy cosmic rays
Objavljeno: 16.02.2018; Ogledov: 972; Prenosov: 84
Polno besedilo (309,46 KB) |
50. All-sky search for correlations in the arrival directions of astrophysical neutrino candidates and ultrahigh-energy cosmic raysI. Al Samarai, Andrej Filipčič, Gašper Kukec Mezek, Ahmed Saleh, Samo Stanič, Marta Trini, Darko Veberič, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, 2017, objavljeni znanstveni prispevek na konferenci Najdeno v: ključnih besedah
Ključne besede: correlations, astrophysical neutrino, ultrahigh-energy cosmic rays
Objavljeno: 19.02.2018; Ogledov: 1217; Prenosov: 104
Polno besedilo (3,07 MB) |
