Results 91 to 100 of about 123,706 (259)
Classical and quantum equations of motion of an n-dimensional BTZ black hole
Physics Letters B, 2016 We investigate the gravitational collapse of a non-rotating n-dimensional BTZ black hole in AdS space in the context of both classical and quantum mechanics.
Eric Greenwood
doaj +1 more source
Mode-coupling in rotating gravitational collapse: Gravitational and electromagnetic perturbations
, 2000 We consider the late-time evolution of {\it gravitational} and electromagnetic perturbations in realistic {\it rotating} Kerr spacetimes. We give a detailed analysis of the mode-coupling phenomena in rotating gravitational collapse. A consequence of this
A. Ori +33 more
core +1 more source
Nonadiabatic gravitational collapse
The Astrophysical Journal, 1987 The junction conditions of a collapsing nonadiabatic charged body producing radiation are studied. The interior spacetime is modelled by a magnetohydrodynamic fluid undergoing dissipation in the form of a radial heat flow. The fluid is considered shear-free, giving rise to the slowest possible collapse, as shown by Raychaudhuri's (1957) equation.
A. K. G. de Oliveira, N. O. Santos
openaire +1 more source
Energy Science &Engineering, EarlyView.With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong +5 more
wiley +1 more source
, 2011 We have investigated several properties of rapidly rotating dynamic black holes generated by gravitational collapse of rotating relativistic stars. At present, numerical simulations of the binary black hole merger are able to produce a Kerr black hole of
B. S. Sathyaprakash +5 more
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Energy Science &Engineering, EarlyView.This work reveals the “C‐Y,” double “Y,” “π,” and “Y” fracture modes of thick, hard strata and their progressive breaking process (O‐F‐R/S mode), providing a theoretical basis for controlling strong ground pressure in deep mining. ABSTRACT In response to the dynamic hazards caused by the fracture of thick‐hard strata in deep mining, this study ...
Meilu Yu, Jianping Zuo
wiley +1 more source
Larson-Penston Self-similar Gravitational Collapse. [PDF]
Commun Math Phys, 2021 Guo Y, Hadžić M, Jang J.
europepmc +1 more source
Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway
Energy Science &Engineering, EarlyView.Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu +9 more
wiley +1 more source
S-Duality at the Black Hole Threshold in Gravitational Collapse
, 1995 We study gravitational collapse of the axion/dilaton field in classical low energy string theory, at the threshold for black hole formation. A new critical solution is derived that is spherically symmetric and continuously self-similar.
A. Sen +6 more
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Geological Journal, EarlyView.This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi +3 more
wiley +1 more source