Neutron conversion–diffusion: a new model for structured short gamma-ray burst jets compatible with GRB 170817-Reference-Cited by-同舟云学术

Neutron conversion–diffusion: a new model for structured short gamma-ray burst jets compatible with GRB 170817

Published:2021-03-08 Issue:2 Volume:503 Page:2499-2513
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Preau Edwan¹,Ioka Kunihito²^ORCID,Mészáros Peter³⁴⁵⁶

Affiliation:

1. Department of Physics, Ecole Normale Superieure, F-75005 Paris, France

2. Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan

3. Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA

4. Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA

5. Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA

6. Center for Multimessenger Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA

Abstract

ABSTRACT We present a generic theoretical model for the structuring of a relativistic jet propagating through the ejecta of a binary neutron star merger event, introducing the effects of the neutron conversion–diffusion, which provides a baryon flux propagating transversely from the ejecta towards the jet axis. This results naturally in an increased baryon load structure of the outer jet with the approximate isotropic energy distribution Eiso(θ) ∝ θ−4, which is compatible with the first gravitational wave and short gamma-ray burst event GW170817/GRB 170817A observed at an off-axis angle of the jet.

Funder

JSPS

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab652/36520368/stab652.pdf

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