搜索结果: 1-15 共查到“知识库 理学 black holes”相关记录147条 . 查询时间(0.027 秒)
Wei-xiong Huang Explain Cosmic Mysteries-Black Holes Do Not Exist
stellar mass black holes
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2015/5/28
1. Celestial body center temperature is proportional to cube root of stellar mass. 2. When stellar temperature exceeds boiling point of all elements, stellar density is inversely proportional to cube ...
Pair creation of dilaton black holes
Theory of gravity time and space dimensions coupling a black hole magnetism
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2014/12/23
We consider dilaton gravity theories in four spacetime dimensions parametrized by a constant a, which controls the dilaton coupling, and construct new exact solutions. We first generalize the C metric...
Non-extreme Calabi-Yau black holes
4 d black holes supergravity theory independent module and scalar function coupling matrix
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2014/12/22
Non-extreme black hole solutions of four dimensional, N = 2 supergravity theories with Calabi-Yau prepotentials are presented, which generalize certain known double-extreme and extreme solutions. The ...
The Dynamics of Collapsing Monopoles and Regular Black Holes
A black hole thin shell magnetic monopoles dynamic static configuration high energy laser
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2014/12/22
We study the formation and stability of regular black holes by employing a thin shell approximation to the dynamics of collapsing magnetic monopoles. The core deSitter region of the monopole is matche...
From wrapped M-branes to Calabi-Yau black holes and strings
Time and space time and space movement equation the black hole black string
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2014/12/20
We study a class of D = 11 BPS spacetimes that describe M-branes wrapping supersymmetric 2 and 4-cycles of Calabi-Yau 3-folds. We analyze the geometrical significance of the supersymmetry constraints ...
Stresses and strains in the first law for Kaluza-Klein black holes
Both black hole kaluza-klein thermodynamics first law static black holes
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2014/12/20
We consider how variations in the moduli of the compactification manifold contribute `pdV' type work terms to the first law for Kaluza-Klein black holes. We give a new proof for the S1 case, based on ...
The first law for boosted Kaluza-Klein black holes
Both black hole kaluza-klein thermodynamics time and space
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2014/12/20
We study the thermodynamics of Kaluza-Klein black holes with momentum along the compact dimension, but vanishing angular momentum. These black holes are stationary, but non-rotating. We derive the fir...
Enthalpy and the mechanics of AdS black holes
Geometric Smarr formula of static black hole the first law the cosmological constant
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2014/12/19
We present geometric derivations of the Smarr formula for static AdS black holes and an expanded first law that includes variations in the cosmological constant. These two results are further related ...
RIGIDITY OF STATIONARY BLACK HOLES WITH SMALL ANGULAR MOMENTUM ON THE HORIZON
RIGIDITY OF STATIONARY BLACK HOLES SMALL ANGULAR MOMENTUM THE HORIZON
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2014/4/3
We prove a black hole rigidity result for slowly rotating stationary solutions of the Einstein vacuum equations. More precisely, we prove that the domain of outer communications of a regular stationar...
Mergers and ejections of black holes in globular clusters
black hole physics globular clusters numerical Mergers ejections
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2012/2/23
We report on results of fully consistent N-body simulations of globular cluster models with N = 100 000 members containing neutron stars and black holes. Using the improved `algorithmic regularization...
Neutral and charged matter in equilibrium with black holes
Neutral charged matter equilibrium black holes
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2011/10/14
We study the conditions of a possible static equilibrium between spherically symmetric, electrically charged or neutral black holes and ambient matter. The following kinds of matter are considered: (1...
Static and spherically symmetric black holes in $f(R)$ theories
Static spherically symmetric black holes theories
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2011/10/14
We study some features of static and spherically symmetric solutions (SSS) with a horizon in $f(R)$ theories of gravitation by means of a near-horizon analysis. A necessary condition for an $f(R)$ the...
Unification models with reheating via Primordial Black Holes
Unification models reheating via Primordial Black Holes
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2011/10/20
We study the possibility of reheating the universe through the evaporation of Primordial Black Holes created at the end of inflation. This is shown to allow for the unification of inflation and dark m...
A Nonsingular Brans Wormhole: An Analogue to Naked Black Holes
Nonsingular Brans Wormhole Black Holes Analogue
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2011/10/10
Abstract: In a recent paper, we showed the Jordan frame vacuum Brans Class I solution provided a wormhole analogue to Horowitz-Ross naked black hole in the wormhole range -3/2<{\omega}<-4/3. Thereafte...
Effective temperature for black holes
Black hole entropy Hawking radiation eff ective temperature
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2011/10/14
The physical interpretation of black hole's quasinormal modes is fundamental for realizing unitary quantum gravity theory as black holes are considered theoretical laboratories for testing models of s...