Astrofísicas: Fuentes de rayos gamma

  • Publicación
    A rapid response to GRB 070411
    We report on early observations of the optical afterglow of GRB 070411 obtained by the Črni Vrh 0.6-m, the ROTSE IIIc 0.45-m, and the Tautenburg 1.34-m Schmidt...
  • Publicación
    Catalog of Long-term Transient Sources in the First 10 yr of Fermi-LAT Data
    We present the first Fermi Large Area Telescope (LAT) catalog of long-term γ-ray transient sources (1FLT). This comprises sources that were detected on monthly...
  • Publicación
    Changing Look of the Optical Spectrum of the MeV Blazar PKS 0446+112 (4FGL J0449.1+1121)
    Following the high activity of the γ-ray Fermi source 4FGL J0449.1+1121 (PKS 0446+112), possibly associated with a IceCube neutrino event IC-240105A, we...
  • Publicación
    Constraints on Gamma-Ray and Neutrino Emission from NGC 1068 with the MAGIC Telescopes
    Starburst galaxies and star-forming active galactic nuclei are among the candidate sources thought to contribute appreciably to the extragalactic gamma-ray and...
  • Publicación
    Dark bursts in the Swift era
    The nature of the dark bursts is still not fully understood. Here, we report on some of our recent studies on Swift dark bursts. Thereby, we pay particular...
  • Publicación
    Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952-0607
    The Low-Frequency Array radio telescope discovered the 707 Hz binary millisecond pulsar (MSP) J0952-0607 in a targeted radio pulsation search of an unidentified...
  • Publicación
    Discovery of a Gamma-Ray Black Widow Pulsar by GPU-accelerated Einstein@Home
    We report the discovery of 1.97 ms period gamma-ray pulsations from the 75 minute orbital-period binary pulsar now named PSR J1653-0158. The associated Fermi...
  • Noticia
    El Gran Telescopio Canarias encuentra el agujero negro más lejano perteneciente a una rara familia de galaxias
    Un equipo internacional de astrónomos ha identificado una rara clase de galaxias que emiten rayos gamma, conocidas como BL Lacertae, dentro de los primeros 2...
  • Noticia
    El telescopio LST-1 en La Palma detecta el Púlsar del Cangrejo a muy alta energía
    El primer prototipo de Telescopio de Gran Tamaño (LST) de la Red de Telescopios Cherenkov (CTA), el LST-1, ubicado en el Observatorio del Roque de los Muchachos...