Astrofísicas: Rayos gamma

  • Publicación
    MAGIC Observations of the Unidentified γ-Ray Source TeV J2032+4130
    We observed the first known very high energy (VHE) γ-ray-emitting unidentified source, TeV J2032+4130, for 94 hr with the MAGIC telescope. The source was...
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    MAGIC Observations of Very High Energy γ-Rays from HESS J1813-178
    Recently, the HESS collaboration has reported the detection of γ-ray emission above a few hundred GeV from eight new sources located close to the Galactic plane...
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    MAGIC observations provide compelling evidence of hadronic multi-TeV emission from the putative PeVatron SNR G106.3+2.7
    Context. Certain types of supernova remnants (SNRs) in our Galaxy are assumed to be PeVatrons, capable of accelerating cosmic rays (CRs) to ~ PeV energies...
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    MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026
    Aims: HESS J1857+026 is an extended TeV gamma-ray source that was discovered by H.E.S.S. as part of its Galactic plane survey. Given its broadband spectral...
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    MAGIC search for VHE γ-ray emission from AE Aquarii in a multiwavelength context
    Context. It has been claimed that the nova-like cataclysmic variable AE Aquarii (AE Aqr) is a very-high-energy (VHE, E> 100 GeV) source both on observational...
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    MAGIC TeV gamma-ray observations of Markarian 421 during multiwavelength campaigns in 2006
    Context. Wide-range spectral coverage of blazar-type active galactic nuclei is of paramount importance for understanding the particle acceleration mechanisms...
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    MAGIC Upper Limits on the Very High Energy Emission from Gamma-Ray Bursts
    During its first data cycle, between 2005 and the beginning of 2006, the fast repositioning system of the MAGIC telescope allowed the observation of nine...
  • Publicación
    MAGIC upper limits to the VHE gamma-ray flux of 3C 454.3 in high emission state
    Aims: We report upper limits to the very high energy flux (E>100 GeV) of the flat spectrum radio quasar 3C 454.3 (z=0.859) derived by the Cherenkov telescope...
  • Publicación
    MAGIC very large zenith angle observations of the Crab Nebula up to 100 TeV
    Aims: We measure the Crab Nebula γ-ray spectral energy distribution in the ~100 TeV energy domain and test the validity of existing leptonic emission models at...