SPH Simulations of the Induced Gravitational Collapse Scenario of Long Gamma-Ray Bursts Associated with Supernovae
Journal Article
·
· The Astrophysical Journal (Online)
- Sapienza Univ. di Roma, Rome (Italy); ICRANet, Pescara (Italy)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sapienza Univ. di Roma, Rome (Italy); ICRANet, Pescara (Italy); ICRANet-Rio, Rio de Janeiro (Brazil)
We present the first three-dimensional smoothed particle hydrodynamics simulations of the induced gravitational collapse scenario of long-duration gamma-ray bursts (GRBs) associated with supernovae (SNe). We simulate the SN explosion of a carbon–oxygen core (COcore) forming a binary system with a neutron star (NS) companion. We follow the evolution of the SN ejecta, including their morphological structure, subject to the gravitational field of both the new NS (νNS) formed at the center of the SN and the one of the NS companion. We compute the accretion rate of the SN ejecta onto the NS companion, as well as onto the νNS from SN matter fallback. We determine the fate of the binary system for a wide parameter space including different COcore and NS companion masses, orbital periods, and SN explosion geometry and energies. We identify, for selected NS nuclear equations of state, the binary parameters leading the NS companion, by hypercritical accretion, either to the mass-shedding limit or to the secular axisymmetric instability for gravitational collapse to a black hole (BH), or to a more massive, fast-rotating, stable NS. We also assess whether the binary remains gravitationally bound after the SN explosion, hence exploring the space of binary and SN explosion parameters leading to νNS–NS and νNS–BH binaries. As a result, the consequences of our results for the modeling of long GRBs, i.e., X-ray flashes and binary-driven hypernovae, are discussed.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1524403
- Report Number(s):
- LA-UR--18-21187
- Journal Information:
- The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 1 Vol. 871; ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Induced Gravitational Collapse, Binary-Driven Hypernovae, Long Gramma-ray Bursts and Their Connection with Short Gamma-ray Bursts
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journal | May 2019 |
Two Predictions of Supernova: GRB 130427A/SN 2013cq and GRB 180728A/SN 2018fip
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journal | March 2019 |
On the Role of a Cavity in the Hypernova Ejecta of GRB 190114C
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journal | October 2019 |
On the GeV Emission of the Type I BdHN GRB 130427A
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journal | November 2019 |
| Two Predictions of supernova: GRB 130427A / SN 2013cq and GRB 180728A / SN 2018fip | text | January 2018 |
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