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相关论文: UHECR besides CenA: hints of galactic sources

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Ultra High Cosmic Rays (UHECR) should be tracing their sources, making a new astronomy. Their events counting are finally growing, by Auger experiment, into cosmic sky. Their map should follow the mass distribution in a narrow cosmic volume…

高能天体物理现象 · 物理学 2012-11-14 D. Fargion , D. D'Armiento

UHECR mystery survived first Auger claims of AGN connection within a GZK (100 Mpc size) Universe. Last 2010 UHECR maps and compositions do show a much lower correlation with AGN SuperGalactic maps and with protons (the two main ingredient…

高能天体物理现象 · 物理学 2015-05-28 Daniele Fargion

The rise of nucleon UHECR above GZK astronomy made by protons is puzzled by three main mysteries: an unexpected nearby Virgo UHECR suppression, a rich crowded clustering frozen vertically (north-south) along Cen A, a composition suggesting…

高能天体物理现象 · 物理学 2010-12-16 D. Fargion

Abstract. We discuss recent results on the clustering, composition and distribution of Ultra-High Energy Cosmic Rays (UHECR) in the sky; from the energy of several tens of EeV in the dipole anisotropy, up to the highest energy of a few…

高能天体物理现象 · 物理学 2026-02-19 Daniele Fargion , Pier Giorgio De Sanctis Lucentini , Maxim Y. Khlopov

Ultra High Energy Cosmic Rays (UHECR) map at 60 EeV have been found recently by AUGER group spreading anisotropy signatures in the sky. The result have been interpreted as a manifestation of AGN sources ejecting protons at GZK edges mostly…

天体物理学 · 物理学 2009-06-23 D. Fargion

UHECR (Ultra High Cosmic Rays) made by He-like lightest nuclei might solve the AUGER extragalactic clustering along Cen A: He UHECR cannot arrive from Virgo because the light nuclei fragility and opacity above few Mpc; UHECR signals are…

高能天体物理现象 · 物理学 2012-09-21 Daniele Fargion

UHECR (Ultra High Energy Cosmic Rays) were expected to be protons, to fly straight and to suffer from a GZK (opacity on CMB radiation) cut off. AUGER suggested in 2007 that such early UHECR anisotropy was compatible with the foreseen…

高能天体物理现象 · 物理学 2014-12-30 Daniele Fargion

We consider the recent results on UHECR (Ultra High Energy Cosmic Ray), clustering, composition, distribution in the sky, from the energy of several EeV with the dipole anisotropy up to the highest ones. We have suggested since 2008 and we…

高能天体物理现象 · 物理学 2022-10-27 D. Fargion , P. G. De Sanctis Lucentini , M. Y. Khlopov

Earliest AUGER UHECR anisotropy correlated with AGN within a GZK Universe almost fade away. Recent UHECR mass compositions did show a negligible nucleon composition and an UHECR nuclei (light or heavy) signature. The absence of UHECR events…

高能天体物理现象 · 物理学 2012-09-24 Daniele Fargion

The ultra-high-energy cosmic ray (UHECR) puzzle is reviewed under the hints of a few basic results: clustering, anisotropy, asymmetry, bending, and composition changes with energies. We show how the lightest UHECR nuclei from the nearest…

高能天体物理现象 · 物理学 2024-08-15 Daniele Fargion , Pier Giorgio De Sanctis Lucentini , Maxim Yu. Khlopov

Earliest 2007 UHECR anisotropy findings and ICRC AUGER updated maps and clustering confirms our understanding of CenA as the main nearby UHECR source. Those events are mostly lightest nuclei, as He. The events are spread by galactic fields.…

高能天体物理现象 · 物理学 2010-06-14 D. Fargion

Ultra High Cosmic Rays) made by He-like lightest nuclei might solve the AUGER extragalactic clustering along Cen A. Moreover He like UHECR nuclei cannot arrive from Virgo because the light nuclei fragility and opacity above a few Mpc,…

高能天体物理现象 · 物理学 2014-12-24 Daniele Fargion

Ultra High Energy Cosmic Rays (UHECR) at GZK cut off energy (E \geq 55 EeV eV) may keep sharp or diffused directionality wherever their composition is made by nucleon or light nuclei. AUGER UHECR (2007-2010) did show a mild clustering…

高能天体物理现象 · 物理学 2012-04-26 D. Fargion

We consider the recent results on UHECR (Ultra High Energy Cosmic Ray) composition and their distribution in the sky from ten EeV energy (the dipole anisotropy) up to the highest UHECR energies and their clustering maps: UHECR have been…

高能天体物理现象 · 物理学 2018-10-05 Daniele Fargion , Pier Giorgio De Sanctis Lucentini , Maxim Yu. Khlopov

The recent UHECR events by AUGER and the Telescope Array (TA) suggested that wide clusterings as the North and South, named Hot Spot, are related to near AGNs such as the one in M82 and Cen A. In the same frame since 2008 we assumed that…

高能天体物理现象 · 物理学 2019-03-26 Daniele Fargion , Pietro Oliva , Pier Giorgio De Sanctis Lucentini , Daniele D Armiento , Paolo Paggi

The discoveries of the GZK cutoff with the HiRes and Auger Observatories and the discovery by Auger of clustering of >~60 EeV ultra-high energy cosmic rays (UHECRs) towards nearby <~75 Mpc) AGNs along the supergalactic plane establishes the…

天体物理学 · 物理学 2011-11-10 Charles D. Dermer

Ultra High Cosmic Rays) made by He-like lightest nuclei might fit clustering along Cen A. Moreover He like UHECR nuclei explain Virgo absence because the light nuclei fragility and opacity above a few Mpc. We foresaw (2009) that UHECR He…

高能天体物理现象 · 物理学 2014-12-24 D. Fargion , D. D'Armiento , P. Paggi

Recent evidence from the Pierre Auger Observatory suggests a transition, at 5 EeV-10EeV in the composition of Ultra High Energy Cosmic Rays (UHECRs), from protons to heavier nuclei such as iron. I consider here the implications of the…

高能天体物理现象 · 物理学 2010-05-20 Tsvi Piran

UHE neutrinos may transfer highest cosmic-rays energies overcoming $2.75K^\circ$ BBR and radio-waves opacities (the GZK cut off) from most distant AGN sources at the age of the Universe. These UHE $\nu$ might scatter onto those (light and…

天体物理学 · 物理学 2007-05-23 Daniele Fargion , Barbara Mele

In this paper we review all the up-to-date Ultra High Energy Cosmic Rays (UHECR) events reported by AUGER, by Telescope Array (TA) and by AGASA in common coordinate maps. We also confirm our earliest (2008-2013) model, where UHECR are…

高能天体物理现象 · 物理学 2016-01-14 Daniele Fargion , Graziano Ucci , Pietro Oliva , Pier Giorgio De Sanctis Lucentini
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