Kool, E. ATel Identification of two classes of gamma-ray bursts - Kouveliotou, Chryssa et al. Lee, W. Newtonian hydrodynamics of the coalescence of black holes with neutron stars. Tidally locked binaries with a stiff equation of state - Lee, William H. Lipunov, V. Population synthesis of gamma-ray bursts with precursor activity and the spinar paradigm - Lipunova, G.
Collapsars: Gamma-ray bursts and explosions in 'failed supernovae' - MacFadyen, A.
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Milisavljev, D. A Superluminal source in the galaxy - Mirabel, I. Are ultralong gamma-ray bursts powered by black holes spinning down? The rapid decay phase of the afterglow as the signature of the Blandford—Znajek mechanism - Nathanail, Antonios et al. Are gamma-ray bursts in star forming regions? A giant outburst two years before the core-collapse of a massive star - Pastorello, Andrea et al. Ultra-bright optical transients are linked with type Ic supernovae - Pastorello, A.
Hydrogen-poor superluminous stellar explosions - Quimby, R. Nature arXiv Rees, M.
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Relativistic fireballs - energy conversion and time - scales - Rees, M. Unsteady outflow models for cosmological gamma-ray bursts - Rees, M. A possible cepheid-like luminosity estimator for the long gamma-ray bursts - Reichart, Daniel E. Rosswog, S.. Spinning up black holes with super-critical accretion flows - Sadowski, Aleksander et al. Short versus long gamma-ray bursts: a comprehensive study of energetics and prompt gamma-ray correlations - Shahmoradi, Amir et al.
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Science no. Hyper- and suspended-accretion states of rotating black holes and the durations of gamma-ray bursts - van Putten, Maurice H. Non-thermal high-energy emissions from black holes by a relativistic capillary effect - van Putten, Maurice H. Prospects for true calorimetry on Kerr black holes in core-collapse supernovae and mergers - van Putten, Maurice H.
D83 arXiv Broad band turbulent spectra in gamma-ray burst light curves - van Putten, Maurice H. Extreme luminosities in ejecta produced by intermittent outflows around rotating black holes - van Putten, Maurice H. These alternatives probably cannot be verified using electromagnetic observations alone. While all short GRBs originate from mergers, the converse need not hold. In these cases, electromagnetic constraints are therefore limited to E tot. The above suggests that, quite generally, the spindown of rapidly rotating black holes in tens of seconds all produce GRBs, some of which result in SNe, while the same of rapidly rotating PNS may all produce SNe and some low-luminosity GRBs.
In Sect. For rotationally powered inner engines, the ejection of matter from the progenitor star is believed to be powered by magnetic outflows instead of neutrino-driven winds as envisioned by Bisnovatyi-Kogan As the wind propagates through the stellar envelope, it accumulates mass and decelerates. In some cases, it may fail to break out of the envelope, but its energy, E w , will eventually be released in the form of hydrodynamic ejecta that drives a supernova flash. Any violation of Eq.
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These estimates are, however, somewhat model-dependent. In the absence of a supernova signature, the kinetic energy E k can sometimes be inferred from calorimetry derived for lower energy afterglows. However, this only accounts for the kinetic energy of the jet producing the GRB, and may represent a lower limit in cases where a baryon-rich wind originates from a disk or torus.
Determining that a transient cannot originate from the spindown of a rapidly rotating PNS is an interesting prior for two reasons. Second, ruling out a PNS directs our attention to black holes as a probable alternative, which would involve different types of emission. This outlook comfortably satisfies the required energies for hyper-energetic events, in both E tot and E SN from.
Model results show that the spin down of black holes should be detectable to a distance about ten times further out than the spin down of neutron stars. Equivalently, they would be observable at similar event rates if the relative branching ratio of CC-SNe producing them is on the order The priors indicating a BH follow for energies exceeding the limitations of s PNS, leaving aside challenges to their formation e. Our multimessenger approach is complementary to others with similar scientific objectives focused on, e.
The Mystery of the Gamma-Ray Bursts | Astronomy
Even so, GRB-SNe are quite likely powered by the spindown of compact objects by their strongly aspherical explosions e. Furthermore, hyper-energetic supernovae associated with some of the weakly beamed low-luminosity GRBs are of interest in view of their relative abundance, which is similar to or at least as numerous as the true rate of the strongly beamed long GRBs. In view of these observations, we focus specifically on the potential for using electromagnetic signatures from supernovae and the weakly beamed low-luminosity GRBs to predict a corresponding output in gravitational waves.
The planned sensitivity of the advanced gravitational-wave detectors should put us in a strong position to probe events such as SNdh to establish the nature of their mysterious inner engine, and to determine whether it formed a PNS or a black hole. The authors gratefully acknowledges constructive comments from both Adam Burrows and the referee.
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Gamma Ray Bursts
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