Merger of binary neutron stars to a black hole: Disk mass, short gamma-ray bursts, and quasinormal mode ringing

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
Masaru Shibata ◽  
Keisuke Taniguchi
Keyword(s):  
Black Hole ◽  
Neutron Stars ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Quasinormal Mode ◽  
Disk Mass ◽  
Binary Neutron Stars

Tests for coalescing binary neutron stars as cosmological origin of gamma-ray bursts

1995 ◽  
Vol 74 (3-4) ◽  
pp. 369-372 ◽  
Author(s):  
V. M. Lipunov ◽  
I. E. Panchenko ◽  
K. A. Postnov ◽  
M. E. Prokhorov
Keyword(s):  
Neutron Stars ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Binary Neutron Stars

scholarly journals How will our knowledge of short gamma-ray bursts affect the distance measurement of binary neutron stars?

2021 ◽  
Vol 65 (1) ◽  
Author(s):  
Minghui Du ◽  
Lixin Xu
Keyword(s):  
Neutron Stars ◽  
Gamma Ray ◽  
Information Matrix ◽  
Distance Measurement ◽  
Gamma Ray Bursts ◽  
Luminosity Distance ◽  
Host Galaxies ◽  
Bayes Analysis ◽  
Binary Neutron Stars ◽  
Detector Configurations

AbstractGravitational waves from binary neutron stars associated with short gamma-ray bursts have drawn considerable attention due to their prospect in cosmology. For such events, the sky locations of sources can be pinpointed with techniques such as identifying the host galaxies. However, the cosmological applications of these events still suffer from the problem of degeneracy between luminosity distance and inclination angle. To address this issue, a technique was proposed in previous study, i.e., using the collimation property of short gamma-ray bursts. Based on the observations, we assume that the cosine of inclination follows a Gaussian distribution, which may act as a prior in the Bayes analysis to break the degeneracy. This paper investigates the effects of different Gaussian priors and detector configurations on distance measurement and cosmological research. We first derive a simplified Fisher information matrix for demonstration, and then conduct quantitative analyses via simulation. By varying the number of third-generation detectors and the scale of prior, we generate four catalogs of 1000 events. It is shown that, in the same detecting period, a network of detectors can recognize more and farther events than a single detector. Besides, adopting tighter prior and employing multiple detectors both decrease the error of luminosity distance. Also considered is the performance of a widely adopted formula in the error budget, which turns out to be a conservative choice in each case. As for cosmological applications, for the ΛCDM model, 500, 200, 600, and 300 events are required for the four configurations to achieve 1% H0 accuracy. With all 1000 events in each catalog, H0 and Ωm can be constrained to (0.66%, 0.37%, 0.76%, 0.49%), and (0.010, 0.006, 0.013, 0.010), respectively. The results of the Gaussian process also show that the gravitational wave standard siren can serve as a probe of cosmology at high redshifts.

scholarly journals Population Synthesis of GRB Progenitors: Problems With Kicks

2000 ◽  
Vol 195 ◽  
pp. 339-346
Author(s):  
C. L. Fryer
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Neutron Stars ◽  
Accretion Disks ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Population Synthesis ◽  
Black Hole Accretion ◽  
Black Hole Accretion Disk ◽  
Hole Accretion

Accretion disks around stellar-mass black holes are now thought to be the engines which power classical gamma-ray bursts (GRBs). These disks are formed almost exclusively in binaries, and to study the characteristics of the progenitors of these black-hole accretion disk (BHAD) GRBs, we must understand the uncertainties in binary population synthesis calculations. Kicks imparted onto nascent neutron stars and black holes are among the most misunderstood concepts of binary population synthesis. In this paper, we outline the current understanding (or lack of understanding) of these kicks and discuss their effect on BHAD GRBs and binary population synthesis as a whole.

scholarly journals Gamma Ray Bursts as Death of Magnetized Neutron Stars

1996 ◽  
Vol 160 ◽  
pp. 361-362
Author(s):  
Hitoshi Hanami
Keyword(s):  
Magnetic Field ◽  
Black Hole ◽  
Neutron Star ◽  
Neutron Stars ◽  
Strong Magnetic Field ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Final Phase ◽  
Poynting Flux ◽  
Free Process

AbstractWe propose magnetic cannon ball mechanism in which the collapse of a magnetosphere onto a black hole can generate strong outward Poynting flux which can drive a baryon-free fireball. This process can occur at the final collapsing phase of a neutron star with strong magnetic field. The magnetic cannon ball can drive a relativistic outflow without the rotation of the central object. This baryon-free process can explain gamma-ray bursts as the final phase of dead pulsars.

The melting of neutron stars' crystalline cores and gamma-ray bursts

1976 ◽  
Vol 39 (1) ◽  
pp. 243-249 ◽  
Author(s):  
Ju. M. Bruk ◽  
K. I. Kugel
Keyword(s):  
Neutron Stars ◽  
Gamma Ray ◽  
Gamma Ray Bursts

Gamma-ray bursts from galactic neutron stars?

1989 ◽  
Vol 10 (2) ◽  
pp. 27-37
Author(s):  
D. Hartmann ◽  
R.I. Epstein ◽  
S.E. Woosley
Keyword(s):  
Neutron Stars ◽  
Gamma Ray ◽  
Gamma Ray Bursts

scholarly journals Variabilities of gamma-ray bursts from black hole hyper-accretion discs

2016 ◽  
Vol 463 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Da-Bin Lin ◽  
Zu-Jia Lu ◽  
Hui-Jun Mu ◽  
Tong Liu ◽  
Shu-Jin Hou ◽  
...  
Keyword(s):  
Black Hole ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Accretion Discs
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