Results 21 to 30 of about 123,706 (259)
Dynamo effects in gravity [PDF]
E3S Web of Conferences, 2019 Nonlinear oscillations in the dynamic system of gravitational and material fields are considered. The problems of singularities and caustics in gravity, expansion and baryon asymmetry of the Universe, wave prohibition of collapse into black holes, and ...
Shevtsov Boris
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Collapsing and Expanding Cylindrically Symmetric Fields with Ligh-tlike Wave-Fronts in General Relativity [PDF]
, 2002 The dynamics of collapsing and expanding cylindrically symmetric gravitational and matter fields with lightlike wave-fronts is studied in General Relativity, using the Barrabes-Israel method.
Pereira, Paulo R. C. T., Wang, A. Z.
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Vaidya spacetime for Galileon gravity's rainbow
Nuclear Physics B, 2016 In this paper, we analyze Vaidya spacetime with an energy dependent metric in Galileon gravity's rainbow. This will be done using the rainbow functions which are motivated from the results obtained in loop quantum gravity approach and noncommutative ...
Prabir Rudra +2 more
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Gravitational phase transitions and instabilities of self-gravitating fermions in general relativity
Physics Letters B, 2020 We discuss the occurrence of gravitational phase transitions and instabilities in a gas of self-gravitating fermions within the framework of general relativity.
Pierre-Henri Chavanis, Giuseppe Alberti
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A conjectured upper bound on the Choptuik critical exponents
Nuclear Physics B, 2021 Near-critical type II gravitational collapse is characterized by the formation of arbitrarily small black holes whose horizon radii are described by the simple scaling law rBH∝(p−p⁎)γ, where γ is the matter-dependent Choptuik critical exponent and Δp≡p−p⁎
Shahar Hod
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A perturbative approach to the time-dependent Karmarkar condition
European Physical Journal C: Particles and Fields, 2021 In this work we employ a perturbative approach to study the gravitational collapse of a shear-free radiating star. The collapse proceeds from an initial static core satisfying the time-independent Karmarkar condition and degenerates into a quasi-static ...
Megandhren Govender +3 more
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Causal structure of singularity in non-spherical gravitational collapse
European Physical Journal C: Particles and Fields, 2022 We investigate here the final state of gravitational collapse of a non-spherical and non-marginally bound dust cloud as modeled by the Szekeres spacetime.
Dipanjan Dey +3 more
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Neutrinos from gravitational collapse [PDF]
The Astrophysical Journal, 1986 A review is made of neutrino fluxes produced by gravitational collapse events (type-II supernovae?). Recent work of Mayle, Wilson and Schramm is used to examine those aspects of neutrino signal which are relatively independent of the collapse model and those aspects which are sensitive to model details.
RON MAYLE +2 more
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PARTICLES, NEUTRINO AND PHOTONS IN THE MAGNETOSPHERE OF A COLLAPSING STAR
Odessa Astronomical Publications, 2014 The formation of the stellar magnetosphere during the gravitational collapse is discussed. Primary protons and electrons accelerate in the star’s magnetosphere during its gravitational collapse.
V. G. Kryvdyk
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Quantitative insights into the role of gravitational collapse in major orogenic belts
Annals of Geophysics, 2006 Previous works have proposed gravitational collapse as the driving mechanism of extensional deformation of thickened continental crust. In this work we investigate the physical plausibility of this interpretation for the most important orogenic ...
E. Mantovani, D. Albarello, M. Viti
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