Gamma Ray Bursts and Delayed Quark-Deconfinement

Bombaci, Ignazio; Parenti, Irene; Vidaña, Isaac

doi:10.1007/1-4020-3430-x_21

Cited by 3 publications

(6 citation statements)

References 56 publications

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“…Solutions for detonation in a static background may correspond to the conversion of neutrons in an otherwise stable neutron star. In a collapsing background the solutions may describe conversion in the neutron core of SN Type II [14,16]. In this latter case detonation is assumed to be triggered at the onset of the collapse.…”

Section: Discussionmentioning

confidence: 99%

“…Recent observational data strongly suggest that "long-duration" Gamma Ray Bursts (GRBs) are associated with supernova explosions [14]. These GRBs follow the supernova events after a period varying from hours to months.…”

Section: Detonation In a Collapsing Background Of Neutron Mattermentioning

confidence: 99%

“…At that we will claim the metric e −λ = 1 − 2MG/Rc 2 to be defined by mass M of the strange star at the radius R (at r = R ρc 2 = 4B). Here we use parameters M = 1.1M ⊙ and R = 9.7km (see data in [14] ).…”

Section: Detonation In a Collapsing Background Of Neutron Mattermentioning

confidence: 99%

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Relativistic Model of Detonation Transition From Neutron to Strange Matter

Tokareva

Nusser

Gurovich

et al. 2005

Int. J. Mod. Phys. D

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We study the conversion of neutron matter into strange matter as a detonation wave. The detonation is assumed to originate from a central region in a spherically symmetric background of neutrons with a varying radial density distribution. We present self-similar solutions for the propagation of detonation in static and collapsing backgrounds of neutron matter. The solutions are obtained in the framework of general relativistic hydrodynamics, and are relevant for the possible transition of neutron into strange stars. Conditions for the formation of either bare or crusted strange stars are discussed.

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Section: Discussionmentioning

confidence: 99%

Section: Detonation In a Collapsing Background Of Neutron Mattermentioning

confidence: 99%

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Relativistic Model of Detonation Transition From Neutron to Strange Matter

Tokareva

Nusser

Gurovich

et al. 2005

Int. J. Mod. Phys. D

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“…the time to form a critical-size drop of quark matter) can be extremely long if the mass of the star is small. Via mass accretion the nucleation time can be dramatically reduced and the star is finally converted from the metastable into the stable configuration [53][54][55]. A huge amount of energy, of the order of 10 52 -10 53 erg, is released during the conversion process and can produce a powerful gamma ray burst.…”

Section: Quark-deconfinement Phase Transition In Neutron Stars and Gamma-ray Burstsmentioning

confidence: 99%

“…In a very recent paper, Berezhiani et al [ 53] (see also ref. [ 54]) have proposed a new model to explain the SN-GRB association and in particular the long time delay inferred for GRB990705 and GRB011211. In the model of ref.…”

Section: Quark-deconfinement Phase Transition In Neutron Stars and Ga...mentioning

confidence: 99%

Strangeness in neutron stars

Bombaci

2005

Nuclear Physics A

Self Cite

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We discuss the role of strangeness on the internal constitution and structural properties of neutron stars. In particular, we report on recent calculations of hyperon star properties derived from microscopic equations of state for hyperonic matter. Next, we discuss the possibility of having a strange quark matter core in a neutron star, or the possible existence of strange quark matter stars, the so-called strange stars.

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Lattice QCD constraints on hybrid and quark stars

et al. 2005

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A QCD-motivated dynamical-quasiparticle model with parameters adjusted to reproduce the lattice-QCD equation of state is extrapolated from region of high temperatures and moderate baryonic densities to the domain of high baryonic densities and zero temperature. The resulting equation of state matched with realistic hadronic equations of state predicts a phase transition into the quark phase at higher densities than those reachable in neutron star interiors. This excludes the possibility of the existence of hybrid (hadron-quark) stars. Pure quark stars are possible and have low masses, small radii and very high central densities. Similar results are obtained for a simple bag model with massive quarks, fitted to reproduce the same lattice results. Self-bound quark matter is also excluded within these models. Uncertainties in the present extrapolation are discussed. Comparison with standard bag models is made.

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Gamma Ray Bursts and Delayed Quark-Deconfinement

Cited by 3 publications

References 56 publications

Relativistic Model of Detonation Transition From Neutron to Strange Matter

Relativistic Model of Detonation Transition From Neutron to Strange Matter

Strangeness in neutron stars

Lattice QCD constraints on hybrid and quark stars

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