Astrophysical: High energy astrophysics

  • Publication
    GRB 221009A: The B.O.A.T. Burst that Shines in Gamma Rays
    We present a complete analysis of Fermi Large Area Telescope (LAT) data of GRB 221009A, the brightest gamma-ray burst (GRB) ever detected. The burst emission...
  • Publication
    IBIS mask pre-calibration matrix
    Coded Aperture System performances are defined by the geometry of the code, detector pixel geometry relationship and focal length. Physical Coded Aperture...
  • Publication
    Investigating the Blazar TXS 0506+056 through Sharp Multiwavelength Eyes During 2017-2019
    The blazar TXS 0506+056 got into the spotlight of the astrophysical community in 2017 September, when a high-energy neutrino detected by IceCube (IceCube...
  • Publication
    Kicking Time Back in Black Hole Mergers: Ancestral Masses, Spins, Birth Recoils, and Hierarchical-formation Viability of GW190521
    A pair-instability supernova (PISN) prevents black hole (BH) formation from stellar collapse within the approximate mass range M ∈ [65, 130] M ⊙. However, such...
  • Publication
    LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with Hubble Space Telescope Template Observations
    Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other...
  • News
    MAGIC telescopes detect the first gamma-rays burst at very high energies
    This ground-breaking achievement by MAGIC provides critical new insight for understanding the physical processes at work in the most powerful cosmic explosions...
  • Publication
    Multiwavelength Observations of the Blazar VER J0521+211 during an Elevated TeV Gamma-Ray State
    We report on a long-lasting, elevated gamma-ray flux state from VER J0521+211 observed by VERITAS, MAGIC, and Fermi-LAT in 2013 and 2014. The peak integral flux...
  • Publication
    Optical performances of the FM JEM-X masks
    The JEM-X Signal Multiplexing Systems are large HURA codes "written" in a pure tungsten plate 0.5 mm thick. 24.247 hexagonal pixels (25% open) are spread over a...
  • News
    Takaaki Kajita: “The detection of gamma-rays with the CTA will be the key to discovering new sources of neutrino emission”
    The Japanese physicist Takaaki Kajita is one of the leading world experts in neutrino physics. These particles have a very tiny mass, and they hardly interact...