Login

Sixteenth Marcel Grossmann Meeting

5–10 Jul 2021
Europe/Rome timezone

Contact

Session

Very High Energy Gamma Rays

HE1
6 Jul 2021, 09:30

Conveners

Very High Energy Gamma Rays: Block 1

  • Alessandro de Angelis
  • Razmik Mirzoyan (Max-Planck-Institute for Physics)

Presentation materials

YouTube Link - July 6
  1. 365. First result of LHAASO: Implication for extreme particle accelerators
    Ruoyu Liu (Nanjing University)
    06/07/2021, 09:30
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    The Large High Altitude Air Shower Observatory is a new-generation multi-component instrument for TeV-PeV gamma rays and TeV-EeV cosmic rays. Recently, LHAASO has published its first result on the discovery of 12 ultrahigh-energy (E>100TeV) gamma-ray sources at more than 7 sigma confidence level. Among them, there are famous sources like the Crab Nebula, the Cygnus Cocoon, as well as new...

    Go to contribution page
  2. 1083. On correlation between diffuse gamma ray and neutrino backgrounds
    Elisa Bernardini (Unipd)
    06/07/2021, 09:50
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    In 2013, the IceCube Neutrino Observatory detected a diffuse background of high-energy astrophysical neutrinos, with energies extending above 1 PeV. Identifying astrophysical objects using this data alone is challenging due to faint neutrino signals.

    High-energy neutrinos are produced in interactions of cosmic rays with matter or photon fields alongside gamma rays at similar energies. While...

    Go to contribution page
  3. 1065. Insights into the the Galactic Center environment from VHE gamma-ray observations with ground-based facilities
    Christian Fruck (Max-Planck-Institute for Physics/Technical University Munich)
    06/07/2021, 10:10
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    The dynamic center of our galaxy is known to host a source of TeV gamma rays since the very beginning of the 21st century and a link to the supermassive black hole at the Galactic Center has been speculated on ever since. But not only the point-like source, spatially coincident with SgrA*, can be observed from the ground using the Imaging Air Cherenkov Telescope technique, but also diffuse...

    Go to contribution page
  4. 1052. Probing Lorentz Invariance Violations with the MAGIC telescopes
    Giacomo D'Amico (University of Bergen)
    06/07/2021, 10:30
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    Abstract: Lorentz Invariance Violation (LIV), as predicted by several quantum gravity models, can manifest in very tiny energy-dependent gradients of light speed in vacuum, dispersing time of flight (ToF) along the path from source to observer for photons of different energy. Despite being suppressed by the Planck energy, LIV effects in the ToF of photons can be amplified by huge cosmological...

    Go to contribution page
  5. 1066. The TAIGA experiment
    Dr Martin Tluczykont (University of Hamburg)
    06/07/2021, 10:50
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    The Tunka Advanced Instrument for Gamma-ray and cosmic ray Astrophysics (TAIGA) is a hybrid experiment for the measurement of Extensive Air Showers (EAS) with good spectral resolution in the TeV to PeV energy range. In this domain, the long-sought Pevatrons can be detected. Currently the hybrid TAIGA detector combines two wide angle shower front Cherenkov light sampling timing arrays (HiSCORE...

    Go to contribution page
  6. 1095. Science with SWGO
    Kristi Engel (University of Maryland, College Park)
    06/07/2021, 11:10
    Very High Energy Gamma Rays
    Invited talk in the parallel session

    Science with SWGO will be discussed.

    Go to contribution page
Building timetable...