Results 71 to 80 of about 2,711,397 (376)
Universal thermodynamic topological classes of rotating black holes
Physics Letters BIn a recent study, Wei et al. (2024) [96] proposed a universal classification scheme that interprets black hole solutions, including the four-dimensional Schwarzschild, Reissner-Nordström (RN), Schwarzschild-AdS, and RN-AdS black hole solutions, as ...
Xiao-Dan Zhu, Wentao Liu, Di Wu
doaj +1 more source
Threshold for primordial black holes: Dependence on the shape of the cosmological perturbations [PDF]
Physical Review D, 2018 Primordial black holes may have formed in the radiative era of the early Universe from the collapse of large enough amplitude perturbations of the metric.
I. Musco
semanticscholar +1 more source
Macroscopic Black Holes, Microscopic Black Holes and Noncommutative Membrane
, 2003 We study the stretched membrane of a black hole as consisting of a perfect fluid. We find that the pressure of this fluid is negative and the specific heat is negative too.
Hawking S +5 more
core +5 more sources
Tidal forces in dirty black hole spacetimes
European Physical Journal C: Particles and Fields, 2022 Black holes can be inserted in very rich astrophysical environments, such as accretion disks. Although isolated black holes are simple objects in general relativity, their accretion disks may significantly enrich the field configurations of their ...
Haroldo C. D. Lima Junior +3 more
doaj +1 more source
Shadows of spherically symmetric black holes and naked singularities [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We compare shadows cast by Schwarzschild black holes with those produced by two classes of naked singularities that result from gravitational collapse of spherically symmetric matter.
R. Shaikh +3 more
semanticscholar +1 more source
Large rotating AdS black holes from fluid mechanics
, 2008 We use the AdS/CFT correspondence to argue that large rotating black holes in global AdS(D) spaces are dual to stationary solutions of the relativistic Navier-Stokes equations on S**(D-2).
Bhattacharyya, Sayantani +3 more
core +1 more source
Black hole masking and black hole thermodynamics [PDF]
Gravitation and Cosmology, 2011 Masking of black holes means that, for given total mass and Hawking temperatures, these data may correspond to either "pure" black hole or a black hole of a lesser mass surrounded by a massive shell. It is shown that there is one-to one correspondence between this phenomenon and thermodynamics of a black hole in a finite size cavity: masking of black ...
openaire +4 more sources
Properties of rotating Einstein-Maxwell-Dilaton black holes in odd dimensions
, 2013 We investigate rotating Einstein-Maxwell-Dilaton (EMd) black holes in odd dimensions. Focusing on black holes with equal-magnitude angular momenta, we determine the domain of existence of these black holes.
Blazquez-Salcedo, Jose Luis +2 more
core +1 more source
Journal of High Energy Physics, 2014 We study six-dimensional rotating black holes with bumpy horizons: these are topologically spherical, but the sizes of symmetric cycles on the horizon vary non-monotonically with the polar angle. We construct them numerically for the first three bumpy families, and follow them in solution space until they approach critical solutions with localized ...
Roberto Emparan +3 more
openaire +4 more sources
The Associations Between Chronic Active Lesions and White Matter Disease: A 7 Tesla Imaging Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background The relationship between paramagnetic rim lesions (PRLs) and surrounding normally appearing white matter (NAWM) disease, potentially contributory to the associations seen between PRLs and clinical impairment, is underexplored. Objectives To assess whether PRLs correlate with a greater degree of NAWM injury in early MS.
Ellie McCluey +17 more
wiley +1 more source