Can Black Hole Neutrino-Cooled Disks Power Short Gamma-Ray Bursts?

Liu, Tong; Yi, Lin; Hou, Shu-Jin; Gu, Wei‐Min

doi:10.1088/0004-637x/806/1/58

Cited by 35 publications

(41 citation statements)

References 86 publications

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“…Furthermore, BZ mechanism can power a GRB more easily than NDAFs, as demonstrated in Section 3.1. Those are summarized in the left panel of Figure 3 (adapted from Figure 20 in Liu et al (2017)): First, almost all SGRBs might be described in the NDAF model, with reasonable disk masses derived from the remanent of the compact objects mergers (Liu et al 2015c); Second, only about half of LGRBs might satisfy the NDAF model, while it might be necessary for the left half to introduce massive disks, extreme Kerr BHs, and high conversion efficiency for neutrino annihilation (Song et al 2016); Third, for LGRBs and ULGRBs, BZ mechanism is especially more efficient than NDAFs. Actually, the deviation between BZ mechanism and NDAFs is more significant if X-ray flares are included 1 (e.g., Liu et al 2015b;Luo et al 2013;Mu et al 2016); Fourth, the millisecond magnetar model could cover almost all types of GRBs as said before.…”

Section: Magnetarsmentioning

confidence: 98%

Comparison of Gravitational Waves from Central Engines of Gamma-Ray Bursts: Neutrino-dominated Accretion Flows, Blandford–Znajek Mechanisms, and Millisecond Magnetars

Liu

Lin

Song

et al. 2017

ApJ

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Neutrino-dominated accretion flow (NDAF) around a rotating stellar-mass black hole (BH) is one of the plausible candidates for the central engines of gamma-ray bursts (GRBs). Because the timevariant and anisotropic emission of neutrinos from NDAFs leads to GRB variability, NDAFs can be regarded as the sources of the strong gravitational waves (GWs). We calculate the dependences of the GW strains on both the BH spin and the accretion rate. We demonstrate that for typical GRBs with either single pulse or multiple pulses, the GWs from NDAFs might be detected at a distance of ∼ 100 kpc/∼ 1 Mpc by advanced LIGO/Einstein Telescope with a typical frequency of ∼ 10 − 100 Hz. Besides NDAFs, the other two competitive candidates for GRB central engine are Blandford-Znajek (BZ) mechanism and millisecond magnetars. We explore the GW signals from these two as well, and compare the corresponding results with NDAFs'. We find that for a certain GRB, the possible detected distance from NDAFs is about two orders of magnitude higher than that from BZ mechanism, but at least two orders of magnitude lower than that from magnetars. The typical GW frequency for BZ mechanism is the same with that of NDAFs, ∼ 10 − 100 Hz, while the typical frequency for magnetars is ∼ 2000 Hz. Therefore, the GWs released by the central engines of adjacent GRBs might be used to determine whether there is an NDAF, a BZ jet or a magnetar in GRB center.

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Section: Magnetarsmentioning

confidence: 98%

Comparison of Gravitational Waves from Central Engines of Gamma-Ray Bursts: Neutrino-dominated Accretion Flows, Blandford–Znajek Mechanisms, and Millisecond Magnetars

Liu

Lin

Song

et al. 2017

ApJ

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“…for 0 < a * < 1 (e.g., Bardeen et al 1972;Kato et al 2008;Zalamea & Beloborodov 2011;Liu et al 2015c). …”

Section: Neutrino Luminosity and Annihilation Luminositymentioning

confidence: 99%

Neutrino-dominated accretion flows as the central engine of gamma-ray bursts

Liu

Zhang

2017

New Astronomy Reviews

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112

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Neutrino-dominated accretion flows (NDAFs) around rotating stellar-mass black holes (BHs) are plausible candidates for the central engines of gamma-ray bursts (GRBs). NDAFs are hyperaccretion disks with accretion rates in the range of around 0.001-10 M ⊙ s −1 , which have high density and temperature and therefore are extremely optically thick and geometrically slim or even thick. We review the theoretical progresses in studying the properties of NDAFs as well as their applications to the GRB phenomenology. The topics include: the steady radial and vertical structure of NDAFs and the implications for calculating neutrino luminosity and annihilation luminosity, jet power due to neutrino-antineutrino annihilation and Blandford-Znajek mechanism and their dependences on parameters such as BH mass, spin, and accretion rate, time evolution of NDAFs, effect of magnetic fields, applications of NDAF theories to the GRB phenomenology such as lightcurve variability, extended emission, X-ray flares, kilonovae, etc., as well as probing NDAFs using multi-messenger signals such as MeV neutrinos and gravitational waves.

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“…(e.g., Eichler et al 1989;Aloy et al 2005;Liu et al 2012bLiu et al , 2015c. In this paper, we take η = 0.2 and 0.5.…”

Section: Modelmentioning

confidence: 99%

Testing black hole neutrino-dominated accretion discs for long-duration gamma-ray bursts

Song¹,

Liu²,

Gu³

et al. 2016

Mon. Not. R. Astron. Soc.

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Long-duration gamma-ray bursts (LGRBs) are generally considered to originate from the massive collapsars. It is believed that the central engine of gamma-ray bursts (GRBs) is a neutrino-dominated accretion flow (NDAF) around a rotating stellar-mass black hole (BH). The neutrino annihilation above the NDAF is a feasible mechanism to power GRB. In this work, we analyse the distributions of the isotropic gammaray radiated energy and jet kinetic energy of 48 LGRBs. According to the NDAF and fireball models, we estimate the mean accreted masses of LGRBs in our sample to investigate whether the NDAFs can power LGRBs with the reasonable BH parameters and conversion efficiency of neutrino annihilation. The results indicate that most of the values of the accreted masses are less than 5 M ⊙ for the extreme Kerr BHs and high conversion efficiency. It suggests that the NDAFs may be suitable for most ofLGRBs except for some extremely high energy sources.

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Can Black Hole Neutrino-Cooled Disks Power Short Gamma-Ray Bursts?

Cited by 35 publications

References 86 publications

Comparison of Gravitational Waves from Central Engines of Gamma-Ray Bursts: Neutrino-dominated Accretion Flows, Blandford–Znajek Mechanisms, and Millisecond Magnetars

Comparison of Gravitational Waves from Central Engines of Gamma-Ray Bursts: Neutrino-dominated Accretion Flows, Blandford–Znajek Mechanisms, and Millisecond Magnetars

Neutrino-dominated accretion flows as the central engine of gamma-ray bursts

Testing black hole neutrino-dominated accretion discs for long-duration gamma-ray bursts

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