Results 31 to 40 of about 123,706 (259)

Do naked singularities generically occur in generalized theories of gravity? [PDF]

open access: yes, 1998
A new mechanism for causing naked singularities is found in an effective superstring theory. We investigate the gravitational collapse in a spherically symmetric Einstein-Maxwell-dilaton system in the presence of a pure cosmological constant "potential",
D. Garfinkle   +16 more
core   +2 more sources

On the quantum corrected gravitational collapse

open access: yesPhysics Letters B, 2015
Based on a previously found general class of quantum improved exact solutions composed of non-interacting (dust) particles, we model the gravitational collapse of stars.
Ramón Torres, Francesc Fayos
doaj   +1 more source

Gravitational waves and core-collapse supernovae

open access: yes, 2017
A mechanism of formation of gravitational waves in the Universe is considered for a nonspherical collapse of matter. Nonspherical collapse results are presented for a uniform spheroid of dust and a finite-entropy spheroid. Numerical simulation results on
Bisnovatyi-Kogan, G. S.   +1 more
core   +1 more source

Time-parallel gravitational collapse simulation [PDF]

open access: yesCommunications in Applied Mathematics and Computational Science, 2017
16 pages, 8 figures, 1 listing, and 1 ...
Kreienbuehl, AK   +3 more
openaire   +4 more sources

Axisymmetric core collapse simulations using characteristic numerical relativity [PDF]

open access: yes, 2003
We present results from axisymmetric stellar core collapse simulations in general relativity. Our hydrodynamics code has proved robust and accurate enough to allow for a detailed analysis of the global dynamics of the collapse.
A. Harten   +36 more
core   +2 more sources

Gravitational collapse in SYK models and Choptuik-like phenomenon

open access: yesJournal of High Energy Physics, 2019
SYK model is a quantum mechanical model of fermions which is solvable at strong coupling and plays an important role as perhaps the simplest holographic model of quantum gravity and black holes.
Avinash Dhar   +4 more
doaj   +1 more source

High frequency sources of gravitational waves

open access: yes, 2003
Sources of high frequency gravitational waves are reviewed. Gravitational collapse, rotational instabilities and oscillations of the remnant compact objects are potentially important sources of gravitational waves.
Andersson   +21 more
core   +2 more sources

Gravitational Collapse in Higher Dimension [PDF]

open access: yes, 2002
Spherically symmetric inhomogeneous dust collapse has been studied in higher dimensional space-time and appearance of naked singularity has been analyzed both for non-marginal and marginally bound cases.
Chakraborty, Subenoy, Debnath, Ujjal
core   +3 more sources

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu   +18 more
wiley   +1 more source

Gravitational Collapse [PDF]

open access: yesSymposium - International Astronomical Union, 1974
In the standard picture of gravitational collapse to a black hole, a key role is played by the hypothesis of cosmic censorship – according to which no naked space-time singularities can result from any collapse. A precise definition of a naked singularity is given here which leads to a strong ‘local’ version of the cosmic censorship hypothesis. This is
openaire   +1 more source

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