Results 91 to 100 of about 745,401 (375)

Dynamics of dissipative gravitational collapse

open access: yes, 2004
The Misner and Sharp approach to the study of gravitational collapse is extended to the dissipative case in, both, the streaming out and the diffusion approximations. The role of different terms in the dynamical equation are analyzed in detail.
B. Carter   +19 more
core   +1 more source

Equation of state effects on gravitational waves from rotating core collapse [PDF]

open access: yes, 2017
Gravitational waves (GWs) generated by axisymmetric rotating collapse, bounce, and early postbounce phases of a galactic core-collapse supernova are detectable by current-generation gravitational wave observatories.
S. Richers   +7 more
semanticscholar   +1 more source

Critical phenomena in gravitational collapse [PDF]

open access: yesBanach Center Publications, 1997
AbstractAs first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity. Universality, power-law scaling of the black hole mass, and scale echoing have given rise to the term “critical phenomena”.
openaire   +10 more sources

An approximate treatment of gravitational collapse [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 2013
This work studies a simplified model of the gravitational instability of an initially homogeneous infinite medium, represented by $\TT^d$, based on the approximation that the mean fluid velocity is always proportional to the local acceleration.
Ascasibar, Yago   +2 more
openaire   +5 more sources

Enhancing Grayscale E‐Beam Lithography: Thermal Treatment of Novolak‐Based Resist for 3D Nanostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh   +4 more
wiley   +1 more source

Critical Phenomena in Gravitational Collapse

open access: yesLiving Reviews in Relativity, 1999
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity.
Gundlach Carsten
doaj  

Toward Long‐Lasting Slippery Surfaces for Condensation and Icephobicity: From Lubricant‐Infused to Liquid‐Like Surfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
Schematic of two representative slippery surface: Lubricant‐infused surface (LIS) and liquid‐like surface (LLS) and its application in condensation and icephobic surface ABSTRACT Slippery surfaces that minimize contact line pinning and enable high droplet mobility have emerged as promising solutions for enhancing condensation and anti‐icing performance.
Jun Soo Kim   +5 more
wiley   +1 more source

Circular Polarizations of Gravitational Waves from Core-Collapse Supernovae: A Clear Indication of Rapid Rotation. [PDF]

open access: yesPhysical Review Letters, 2016
We propose to employ the circular polarization of gravitational waves emitted by core-collapse supernovae as an unequivocal indication of rapid rotation deep in their cores just prior to collapse. It has been demonstrated by three dimensional simulations
K. Hayama   +3 more
semanticscholar   +1 more source

Calculation of radar signals delay to second order in the frame of the General Relativity Theory

open access: yesACI Avances en Ciencias e Ingenierías, 2014
From the Schwarzschild metric, the light delay due to a gravitational field is calculated to second order approximation in the gravitational potential. We analize the contribution of the second order terms for strong gravitational fields as the generated
Joaquín Valerio Grefa, Carlos A. Marín
doaj   +1 more source

Gravitational Collapse in One Dimension

open access: yes, 2012
We simulate the evolution of one-dimensional gravitating collisionless systems from non- equilibrium initial conditions, similar to the conditions that lead to the formation of dark- matter halos in three dimensions.
A. E. Schulz   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy