Astrofísicas: Rayos gamma

  • Publicación
    Testing the ubiquitous presence of very high energy emission in gamma-ray bursts with the MAGIC telescopes
    Gamma-ray bursts (GRBs) are the most powerful transient objects in the Universe, and they are a primary target for the MAGIC Collaboration. Recognizing the...
  • Publicación
    Testing two-component models on very high-energy gamma-ray-emitting BL Lac objects
    Context. It has become evident that one-zone synchrotron self-Compton models are not always adequate for very high-energy (VHE) gamma-ray-emitting blazars...
  • Publicación
    TeV pion bumps in the gamma-ray spectra of flaring blazars
    Context. Very high-energy (VHE, E > 100 GeV) observations of the blazar Mrk 501 with MAGIC in 2014 provided evidence for an unusual narrow spectral feature at...
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    The 2010 Very High Energy γ-Ray Flare and 10 Years of Multi-wavelength Observations of M 87
    The giant radio galaxy M 87 with its proximity (16 Mpc), famous jet, and very massive black hole ((3 - 6) × 109 M &sun;) provides a unique opportunity to...
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    The Blazar TXS 0506+056 Associated with a High-energy Neutrino: Insights into Extragalactic Jets and Cosmic-Ray Acceleration
    A neutrino with energy ˜290 TeV, IceCube-170922A, was detected in coincidence with the BL Lac object TXS 0506+056 during enhanced gamma-ray activity, with...
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    The bright optical afterglow of the long GRB 001007
    We present optical follow up observations of the long GRB 001007 between 6.14 hours and ~468 days after the event. An unusually bright optical afterglow (OA)...
  • Publicación
    The Bright γ-ray Flare of 3C 279 in 2015 June: AGILE Detection and Multifrequency Follow-up Observations
    We report the AGILE detection and the results of the multifrequency follow-up observations of a bright γ-ray flare of the blazar 3C 279 in 2015 June. We use...
  • Publicación
    The Broadband Energy Distribution of the Misaligned Gamma-Ray Blazar PKS 0521-365
    Simultaneous UV and X-ray observations of the blazar PKS 0521-365 are combined with radio, IR, optical, and y-ray data taken at different epochs to study the...
  • Publicación
    The Cherenkov Telescope Array potential for the study of young supernova remnants
    Supernova remnants (SNRs) are among the most important targets for γ-ray observatories. Being prominent non-thermal sources, they are very likely responsible...