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GRB 180720B: A Glitching Giant

POSTER

Abstract

GRB 180720B, observed by Fermi-GBM on 20 July 2018 at 14:21:39.65 UT with an isotropic energy of Eiso = 5:92x1053 erg, is classified as a Binary-driven Hypernova of type I (BdHN I). The gravitational collapse of the COcore leads to a supernova (SN) explosion and to a collapsing iron core producing a new NS (νNS). The hypercritical accretion of the SN ejecta onto the νNS leads to a long-lasting X-ray afterglow with a luminosity LX / t-1.48±0.32. We propose that this short-term radiation with energy of ΔEg,rad = 3x1050 erg, occurring during the characteristic time of Δtrec~ 103 s is due to the glitch events caused by the energy of the injected relativistic electrons occurring in the magnetosphere of the νNS during its slowing down.

Presenters

  • RAHIM MORADI

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

Authors

  • RAHIM MORADI

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • LIANG LI

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • J Ruffini

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I–65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • JORGE ARMANDO RUEDA HERNANDEZ

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I–65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • CARLO LUCIANO BIANCO

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • NAREK SAHAKYAN

    ICRANet-Armenia, Marshall Baghramian Avenue 24a, Yerevan 0019, Armenia, ICRANet-Armenia, Marshall Baghramian Avenue 24a, Yerevan 0019, Republic of Armenia

  • YU WANG

    ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy, ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy