2014
DOI: 10.1088/2041-8205/788/1/l8
|View full text |Cite
|
Sign up to set email alerts
|

Necessary Conditions for Short Gamma-Ray Burst Production in Binary Neutron Star Mergers

Abstract: The central engine of short gamma-ray bursts (sGRBs) is hidden from direct view, operating at a scale much smaller than that probed by the emitted radiation. Thus we must infer its origin not only with respect to the formation of the trigger -the actual astrophysical configuration that is capable of powering a sGRB -but also from the consequences that follow from the various evolutionary pathways that may be involved in producing it. Considering binary neutron star mergers we critically evaluate, analytically … Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

13
205
0
1

Year Published

2015
2015
2022
2022

Publication Types

Select...
7
1

Relationship

1
7

Authors

Journals

citations
Cited by 183 publications
(219 citation statements)
references
References 49 publications
13
205
0
1
Order By: Relevance
“…If the merged core forms a neutron star, neutrino-driven winds (Dessart et al 2009;Perego et al 2014) drive outflows through which any jet must penetrate to produce a GRB. Current studies argue that this well-known baryon contamination problem can only be avoided if the neutron star phase lasts less than ∼100 ms (Murguia-Berthier et al 2014). If this is true, GRBs are produced in only a fraction of all merging systems.…”
Section: Discussionmentioning
confidence: 99%
See 2 more Smart Citations
“…If the merged core forms a neutron star, neutrino-driven winds (Dessart et al 2009;Perego et al 2014) drive outflows through which any jet must penetrate to produce a GRB. Current studies argue that this well-known baryon contamination problem can only be avoided if the neutron star phase lasts less than ∼100 ms (Murguia-Berthier et al 2014). If this is true, GRBs are produced in only a fraction of all merging systems.…”
Section: Discussionmentioning
confidence: 99%
“…To determine the engine behind this GRB scenario, we must understand the accretion timescale. If the core remains a neutron star for a long period of time, the neutrino-driven wind will choke the outflow, preventing a strong burst (Murguia-Berthier et al 2014). To estimate the accretion time of the disk, we use the matter distribution from our models and assume an α-driven disk scenario.…”
Section: Ns-ns Mergersmentioning
confidence: 99%
See 1 more Smart Citation
“…In scenario b in Figure 1, the collapse to a black hole occurs (green) and L * = 0.7 × 10 51 erg/s, a = 0.6 promptly and a classical jetted sGRB is produced which we happen to view off-axis (such as Ramirez-Ruiz et al 2005). Not only would a sGRB be detectable in both scenarios, followed by an afterglow, but there could also be additional extended emission at early stages caused by the reprocessing of this energy and its subsequent dissipation (Murguia-Berthier et al 2014;Rezzolla & Kumar 2015). This could resemble the so called extended emission in sGRBs (Norris & Bonnell 2006).…”
Section: Metabolics Of Gw170817/sss17amentioning
confidence: 98%
“…For example, Murguia-Berthier et al (2014) argue that collapse must occur within 100 ms of the initial merger, otherwise baryon contamination prevents the observed high Lorentz factors. Given the large fraction NS or supramassive NS remnants we find, this implies either a fairly soft EOS (with maximum masses in the range of ≈2.0-2.2, Lawrence et al 2015, or ≈2.3-2.4, Fryer et al 2015, depending on the exact distribution of NS masses used) or that a non-negligible fraction of NS-NS mergers do not make SGRBs.…”
Section: Short Gamma-ray Burstsmentioning
confidence: 99%