The conical morphology, jetted GeV emission, and X-ray afterglows of long GRBs

POSTER

Abstract

Context. We review evidence that all short and long GRBs have binary progenitors. Among them, the progenitor of BdHNe consists of a carbon-oxygen core (COcore) and a binary neutron star (NS) companion. For binary periods as short as 5 min, the special energetic subclass BdHN I originates from the COcore collapse. In some cases only, further accretion onto the BH leads to GeV emission with an isotropic luminosity LGeV ∝ t−1.19±0.04. 3) The new NS (νNS)created by the SN accretes SN material giving origin to the X-ray afterglow with LX ∝ t−1.48±0.32, always present in all BdHN I.
Conclusions. In BdHN I the BH originates from the gravitational collapse of the companion following the SN hypercritical accretion. The GeV rest-frame luminosity follows a universal power-law of index −1.19±0.04, and is jetted with a 60° angle. We estimate the evolution of the mass and the spin of their BH and verify, for the first time, the validity of the BH extractable energy formula. From their X-ray afterglow luminosity, we determine the spin of the νNS consistently below their maximum theoretical value. The presence of the afterglow emission in all observed BdHN families clearly points to a process occurring with very wide-angle emission.

Presenters

  • 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

Authors

  • 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

  • RAHIM MORADI

    • ICRANet, P.zza della Repubblica 10, 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

  • LIANG LI

    • 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

  • YEN-CHEN CHEN

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • YU WANG

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

  • YERLAN AIMURATOV

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • LAURA MARCELA BECERRA

    • 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

  • CHRISTIAN CHERUBINI

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

  • SIMONETTA FILIPPI

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

  • MILE KARLICA

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • Grant James Mathews

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • MARCO MUCCINO

    • Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, I-00044 Frascati, Italy

  • GIOVANNI PISANI

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • DARIA PRIMORAC

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy

  • SHESHENG XUE

    • ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy