0000000000530421

AUTHOR

F. Krauß

showing 3 related works from this author

Insights into the particle acceleration of a peculiar gamma -ray radio galaxy IC 310

2015

IC 310 has recently been identified as a gamma-ray emitter based on observations at GeV energies with Fermi-LAT and at very high energies (VHE, E > 100 GeV) with the MAGIC telescopes. Despite IC 310 having been classified as a radio galaxy with the jet observed at an angle > 10 degrees, it exhibits a mixture of multiwavelength properties of a radio galaxy and a blazar, possibly making it a transitional object. On the night of 12/13th of November 2012 the MAGIC telescopes observed a series of violent outbursts from the direction of IC 310 with flux-doubling time scales faster than 5 min and a peculiar spectrum spreading over 2 orders of magnitude. Such fast variability constrains the size of…

Astrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy Astrophysics
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ANTARES constrains a blazar origin of two IceCube PeV neutrino events

2015

Abstract Context. The source(s) of the neutrino excess reported by the IceCube Collaboration is unknown. The TANAMI Collaboration recently reported on the multiwavelength emission of six bright, variable blazars which are positionally coincident with two of the most energetic IceCube events. Objects like these are prime candidates to be the source of the highest-energy cosmic rays, and thus of associated neutrino emission. Aims. We present an analysis of neutrino emission from the six blazars using observations with the ANTARES neutrino telescope. Methods. The standard methods of the ANTARES candidate list search are applied to six years of data to search for an excess of muons and hence th…

Astrofísicaactive [Galaxies]Astrophysics::High Energy Astrophysical PhenomenaMonte Carlo methodFluxFOS: Physical sciencesCosmic rayAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics7. Clean energy01 natural sciencesSpectral line0103 physical sciencesNeutrinoGalaxies: active; Neutrinos; Quasars: generalNeutrinsNeutrinosBlazar010303 astronomy & astrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)MuonCosmologia010308 nuclear & particles physicsFísicaAstronomy and Astrophysicsgeneral [Quasars]Galaxies: activeAstronomy and AstrophysicNeutrino astrophysicsQuasars generalCosmologyneutrinos – galaxies: active – quasars: generalQuasars: generalSpace and Planetary ScienceGalaxies activeCol·lisions (Física nuclear)Galaxies: active; Neutrinos; Quasars: general; Astronomy and Astrophysics; Space and Planetary Science:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]FISICA APLICADAFísica nuclearNeutrinoAstrophysics - High Energy Astrophysical PhenomenaMATEMATICA APLICADA[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Event (particle physics)Astronomy & astrophysics
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Insights into the particle acceleration of a peculiar gamma -ray radio galaxy IC 310

2015

IC 310 has recently been identified as a gamma-ray emitter based on observations at GeV energies with Fermi-LAT and at very high energies (VHE, E > 100 GeV) with the MAGIC telescopes. Despite IC 310 having been classified as a radio galaxy with the jet observed at an angle > 10 degrees, it exhibits a mixture of multiwavelength properties of a radio galaxy and a blazar, possibly making it a transitional object. On the night of 12/13th of November 2012 the MAGIC telescopes observed a series of violent outbursts from the direction of IC 310 with flux-doubling time scales faster than 5 min and a peculiar spectrum spreading over 2 orders of magnitude. Such fast variability constrains the s…

High Energy Astrophysical Phenomena (astro-ph.HE)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy Astrophysics
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