High Energy Cosmic Rays from Fanaroff-Riley radio galaxies
نویسندگان
چکیده
منابع مشابه
Ultra-high Energy Cosmic Rays from Radio Galaxies Revisited
A striking concentration of ultra-high energy cosmic ray (UHECR) events observed by the Pierre Auger Observatory around the direction of the nearby radio galaxy Centaurus A revives the idea that radio galaxies may be dominant sources of UHECR. In this paper, we give a brief overview about processes which may accelerate protons and nuclei in radio galaxies, and their relation to jet power, radio...
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The Pierre Auger Observatory reports that 20 of the 27 highest energy cosmic rays have arrival directions within 3.2 of a nearby galaxy in the Veron-Cetty & Veron Catalog of Quasars and Active Galactic Nuclei (12 Ed.), with ∼ 5 of the correlations expected by chance. In this paper we examine the correlated galaxies to gain insight into the possible UHECR sources. We find that 14 of the 21 corre...
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I review here some of the physics we are learning and expect to learn in the near future through the observation of cosmic rays. The study of cosmic rays involves a combination of data from accelerators, ground arrays, atmospheric fluorescence detectors and balloon and satellite experiments. I will discuss the data of the Pierre Auger Observatory, PAMELA, ATIC and FST among other experiments.
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We have developed a model that explains cosmic rays with energies E between ∼ 0.1 − 1PeV and the energy of the second knee at E2 ∼ 3 × 10 eV as originating from a recent Galactic gamma-ray burst (GRB) that occurred ∼ 1Myr ago within 1 kpc from Earth. Relativistic shocks from GRBs are assumed to inject powerlaw distributions of cosmic ray (CR) protons and ions to the highest ( > ∼ 10 eV) energie...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2019
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2019/05/009