Astrofísicas: Rayos gamma

  • Publicación
    The Very Red Afterglow of GRB 000418: Further Evidence for Dust Extinction in a Gamma-Ray Burst Host Galaxy
    We report near-infrared and optical follow-up observations of the afterglow of the GRB 000418 starting 2.5 days after the occurrence of the burst and extending...
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    Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
    The BL Lacertae object VER J0521+211 underwent a notable flaring episode in February 2020. A short-term monitoring campaign, led by the MAGIC (Major Atmospheric...
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    Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010
    Context. Because of its proximity, Mrk 421 is one of the best sources on which to study the nature of BL Lac objects. Its proximity allows us to characterize...
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    Upper Limit for γ-Ray Emission above 140 GeV from the Dwarf Spheroidal Galaxy Draco
    The nearby dwarf spheroidal galaxy Draco, with its high mass to light ratio, is one of the most auspicious targets for indirect dark matter (DM) searches...
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    Upper Limits on the VHE Gamma-Ray Emission from the Willman 1 Satellite Galaxy with the Magic Telescope
    We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17 m MAGIC telescope during 15.5 hr between March and May...
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    Using population synthesis of massive stars to study the interstellar medium near OB associations
    Aims: We study the massive stars in OB associations and their surrounding interstellar medium environment, using a population synthesis code. Methods: We...
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    Very high energy gamma-ray observation of the peculiar transient event Swift J1644+57 with the MAGIC telescopes and AGILE
    Context. On March 28, 2011, the BAT instrument on board the Swift satellite detected a new transient event that in the very beginning was classified as a gamma...
  • Publicación
    Very High Energy Gamma-Ray Observations of Strong Flaring Activity in M87 in 2008 February
    M87 is the only known nonblazar radio galaxy to emit very high energy (VHE) gamma rays. During a monitoring program of M87, a rapid flare in VHE gamma-rays was...
  • Publicación
    Very High Energy Gamma-Ray Radiation from the Stellar Mass Black Hole Binary Cygnus X-1
    We report on the results from the observations in the very high energy band (VHE; Eγ>=100 GeV) of the black hole X-ray binary (BHXB) Cygnus X-1. The...