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hits: 59
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  • Gamma-ray bursts at high an... Gamma-ray bursts at high and very high energies
    Piron, Frédéric Comptes rendus. Physique, 06/2016, Volume: 17, Issue: 6
    Journal Article
    Peer reviewed
    Open access

    Gamma-Ray Bursts (GRBs) are extra-galactic and extremely energetic transient emissions of gamma rays, which are thought to be associated with the death of massive stars or the merger of compact ...
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  • Fermi Constraints on the Ej... Fermi Constraints on the Ejecta Speed and Prompt Emission Region of the Distant GRB 220101A
    Scotton, Lorenzo; Piron, Frédéric; Omodei, Nicola ... The Astrophysical journal, 10/2023, Volume: 956, Issue: 2
    Journal Article
    Peer reviewed
    Open access

    Abstract At redshift z = 4.618, GRB 220101A is the most distant gamma-ray burst (GRB) detected by Fermi/LAT to date. It is also a very energetic event, with an equivalent isotropic energy of 3.6 × 10 ...
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  • Observations of Gamma-ray B... Observations of Gamma-ray Bursts with the Fermi Large Area Telescope
    Longo, Francesco; Vianello, Giacomo; Omodei, Nicola ... Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 04/2014, Volume: 742
    Journal Article
    Peer reviewed

    The Fermi observatory, with its Gamma-ray Bursts Monitor (GBM) and Large Area Telescope (LAT), is observing Gamma-ray Bursts (GRBs) with a very large spectral coverage and unprecedented sensitivity, ...
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  • The Fermi view of gamma-ray... The Fermi view of gamma-ray bursts
    Piron, Frédéric; Connaughton, Valerie Comptes rendus. Physique, 04/2011, Volume: 12, Issue: 3
    Journal Article
    Peer reviewed
    Open access

    Since its successful launch in June 2008, the Fermi Gamma-ray Space Telescope has made important breakthroughs in the understanding of the Gamma-Ray Burst (GRB) phenomenon. The combination of the GBM ...
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  • Fermi Constraints on the Ejecta Speed and Prompt Emission Region of the Distant GRB 220101A
    Scotton, Lorenzo; Piron, Frédéric; Omodei, Nicola ... arXiv.org, 10/2023
    Paper, Journal Article
    Open access

    At redshift z = 4.618, GRB 220101A is the most distant gamma-ray burst (GRB) detected by Fermi/LAT to date. It is also a very energetic event, with an equivalent isotropic energy of ...
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8.
  • Supersymmetric dark matter ... Supersymmetric dark matter in M31: can one see neutralino annihilation with CELESTE?
    Falvard, A; Giraud, E; Jacholkowska, A ... Astroparticle physics, 01/2004, Volume: 20, Issue: 4
    Journal Article
    Peer reviewed
    Open access

    It is widely believed that dark matter exists within galaxies and clusters of galaxies. Under the assumption that this dark matter is composed of the lightest, stable supersymmetric particle, assumed ...
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  • Etude des propriétés spectrales et de la variabilité de l'emission gamma supérieure à 250 GeV des noyaux actifs de galaxies de type blazar observés dans le cadre de l'expérience C.A.T
    Piron, Frédéric
    Dissertation
    Open access

    Après un rappel des principaux enjeux de l'astronomie y des hautes énergies, l'imageur C.A.T. ("Cerenkov Array at Thémis") est présenté, l'accent étant mis sur les résultats récents de calibration, ...
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