NAGIOS: RODERIC FUNCIONANDO
General relativistic magnetohydrodynamics simulations of prompt-collapse neutron star mergers: The absence of jets
Repositori DSpace/Manakin
- Inici
- Investigació
- e-prints
- 21 - Astronomia i Astrofísica
- Visualitza element
IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/
General relativistic magnetohydrodynamics simulations of prompt-collapse neutron star mergers: The absence of jets
Mostra el registre parcial de l'element
| dc.contributor.author | Ruiz Meneses, Milton Javier | |
| dc.contributor.author | Shapiro, Stuart L. | |
| dc.date.accessioned | 2023-06-02T08:58:24Z | |
| dc.date.available | 2023-06-02T08:58:24Z | |
| dc.date.issued | 2017 | |
| dc.identifier.citation | Ruiz Meneses, Milton Javier Shapiro, Stuart L. 2017 General relativistic magnetohydrodynamics simulations of prompt-collapse neutron star mergers: The absence of jets Physical Review D 96 8 1 9 | |
| dc.identifier.uri | https://hdl.handle.net/10550/87647 | |
| dc.description.abstract | Inspiraling and merging binary neutron stars are not only important source of gravitational waves, but also promising candidates for coincident electromagnetic counterparts. These systems are thought to be progenitors of short gamma-ray bursts (sGRBs). We have shown previously that binary neutron star mergers that undergo delayed collapse to a black hole surrounded by a weighty magnetized accretion disk can drive magnetically powered jets. We now perform magnetohydrodynamic simulations in full general relativity of binary neutron stars mergers that undergo prompt collapse to explore the possibility of jet formation from black hole- light accretion disk remnants. We find that after t−tBH∼26(MNS/1.8 M⊙) ms (MNS is the ADM mass) following prompt black hole formation, there is no evidence of mass outflow or magnetic field collimation. The rapid formation of the black hole following merger prevents magnetic energy from approaching force-free values above the magnetic poles, which is required for the launching of a jet by the usual Blandford-Znajek mechanism. Detection of gravitational waves in coincidence with sGRBs may provide constraints on the nuclear equation of state (EOS): the fate of an NSNS merger-delayed or prompt collapse, and hence the appearance or nonappearance of an sGRB-depends on a critical value of the total mass of the binary, and this value is sensitive to the EOS. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2017, vol. 96, num. 8, p. 1-9 | |
| dc.subject | Astronomia | |
| dc.subject | Astrofísica | |
| dc.title | General relativistic magnetohydrodynamics simulations of prompt-collapse neutron star mergers: The absence of jets | |
| dc.type | journal article | |
| dc.date.updated | 2023-06-02T08:58:25Z | |
| dc.identifier.doi | 10.1103/PhysRevD.96.084063 | |
| dc.identifier.idgrec | 160076 | |
| dc.rights.accessRights | open access |
Visualització
(1.520Mb)