Astrophysical: Gamma rays

  • Publication
    Discovery of the Optical Transient of GRB 990308
    The optical transient of the faint gamma-ray burst GRB 990308 was detected by the QUEST camera on the Venezuelan 1 m Schmidt telescope starting 3.28 hr after...
  • Publication
    Discovery of Very High Energy Gamma Radiation from IC 443 with the MAGIC Telescope
    We report the detection of a new source of very high energy (VHE; Eγ>=100 GeV) γ-ray emission located close to the Galactic plane, MAGIC J0616+225, which is...
  • Publication
    Discovery of Very High Energy Gamma Rays from 1ES 1218+30.4
    The MAGIC collaboration has studied the high-frequency-peaked BL Lac object 1ES 1218+30.4, at a redshift z=0.182, using the MAGIC imaging air Cerenkov telescope...
  • Publication
    Discovery of Very High Energy γ-Ray Emission from the Low-Frequency-peaked BL Lacertae Object BL Lacertae
    The MAGIC collaboration observed BL Lacertae for 22.2 hr during 2005 August to December and for 26 hr during 2006 July to September. The source is the...
  • Publication
    Discovery of Very High Energy γ-Rays from 1ES 1011+496 at z = 0.212
    We report on the discovery of very high energy (VHE) γ-ray emission from the BL Lacertae object 1ES 1011+496. The observation was triggered by an optical...
  • Publication
    Discovery of Very High Energy γ-Rays from Markarian 180 Triggered by an Optical Outburst
    The high-frequency-peaked BL Lacertae object Markarian 180 (Mrk 180) was observed to have an optical outburst in 2006 March, triggering a Target of Opportunity...
  • Publication
    Discovery of very High Energy γ-Rays from the Blazar S5 0716+714
    The MAGIC Collaboration reports the detection of the blazar S5 0716+714 (z = 0.31 ± 0.08) in very high energy gamma rays. The observations were performed in...
  • Publication
    Disentangling the nature of the prototype radio weak BL Lac. Contemporaneous multifrequency observations of WISE J141046.00+740511.2
    Context. The γ-ray emitting source WISE J141046.00+740511.2 has been associated with a Fermi-LAT detection by crossmatching with Swift/XRT data. It has shown...
  • Publication
    Early detection of the optical counterpart to GRB 980329
    We report optical observations of the GRB 980329 error box which represent the second earliest detection of the GRB 980329 optical transient. We determine R =...