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We investigate the dynamical behavior of phantom energy near stringy magnetically charged black hole. For this purpose, we derive equations of motion for steady-state spherically symmetric flow of phantom energy onto the stringy…

General Physics · Physics 2015-06-04 M. Sharif , G. Abbas

In the classical relativistic regime, the accretion of phantom-like dark energy onto a stationary black hole reduces the mass of black hole. Here we have investigated the accretion of phantom energy onto a stationary charged black hole and…

Astrophysics · Physics 2008-12-18 Mubasher Jamil , Muneer Ahmad Rashid , Asghar Qadir

The thermodynamic properties of a phantom fluid and accretion by a black hole were recently revisited by Pereira (2008) and Lima et al. (2008). In order to keep positive both the entropy and the temperature, those authors assumed that the…

Astrophysics · Physics 2008-08-14 J. A. de Freitas Pacheco

The accretion of a phantom fluid with non-zero chemical potential by black holes is discussed with basis on the Generalized Second Law of thermodynamics. For phantom fluids with positive temperature and negative chemical potential we…

General Relativity and Quantum Cosmology · Physics 2014-11-18 J. A. S. Lima , S. H. Pereira , J. E. Horvath , Daniel C. Guariento

We deal with phantom energy accretion onto the Schwarzschild de-Sitter black hole. The energy flux conservation, relativistic Bernoulli equation and mass flux conservation equation are formulated to discuss the phantom accretion. We discuss…

General Relativity and Quantum Cosmology · Physics 2017-08-23 M. Sharif , G. Abbas

The stationary, spherically symmetric accretion of dark energy onto a Schwarzschild black hole is considered in terms of relativistic hydrodynamics. The approximation of an ideal fluid is used to model the dark energy. General expressions…

Astrophysics · Physics 2014-10-13 E. Babichev , V. Dokuchaev , Yu. Eroshenko

In this Letter, we examine the phantom energy accretion onto a Kehagias-Sfetsos black hole in Ho$\check{r}$ava Lifshitz gravity. To discuss the accretion process onto the black hole, the equations of phantom flow near the black hole have…

General Relativity and Quantum Cosmology · Physics 2014-03-11 G. Abbas

Black holes pose a serious problem in the cyclic or oscillating cosmology. It is speculated that, in the cyclic universe with phantom turnarounds, black holes will be torn apart by the phantom energy before turnaround before they can create…

High Energy Physics - Theory · Physics 2008-11-26 Cheng-Yi Sun

Using numerical methods we present the first full nonlinear study of phantom scalar field accreted into a black hole. We study different initial configurations and find that the accretion of the field into the black hole can reduce its area…

General Relativity and Quantum Cosmology · Physics 2015-05-13 J. A. Gonzalez , F. S. Guzman

In this paper, we investigate the phantom energy accretion onto 3D black hole formulated in Einstein-Power-Maxwell theory. We have presented the conditions for critical accretion of phantom energy onto black hole. Further, we discuss the…

General Relativity and Quantum Cosmology · Physics 2015-06-17 G. Abbas

We examine the steady-state spherically symmetric accretion of relativistic fluids, with a polytropic equation of state, onto a higher dimensional Schwarzschild black hole. The mass accretion rate, critical radius, and flow parameters are…

General Relativity and Quantum Cosmology · Physics 2013-11-14 Anslyn J. John , Sushant G. Ghosh , Sunil D. Maharaj

We characterize the nature of thin, axisymmetric, inviscid, accretion flows of cold adiabatic gas with zero specific energy in the vicinity of a black hole by the specific angular momentum. Using two-dimensional hydrodynamic simulations in…

Astrophysics · Physics 2009-10-28 Dongsu Ryu , Sandip K. Chakrabarti , Diego Molteni

Solution for a stationary spherically symmetric accretion of the relativistic perfect fluid with an equation of state p(rho) onto the Schwarzschild black hole is presented. This solution is a generalization of Michel solution and applicable…

General Relativity and Quantum Cosmology · Physics 2007-05-23 E. Babichev , V. Dokuchaev , Y. Eroshenko

Solution for a stationary spherically symmetric accretion of the relativistic perfect fluid with an equation of state $p(\rho)$ onto the Schwarzschild black hole is presented. This solution is a generalization of Michel solution and…

General Relativity and Quantum Cosmology · Physics 2009-11-10 E. Babichev , V. Dokuchaev , Yu. Eroshenko

This paper deals with the steady-state polytropic fluid accretion onto a higher-dimensional Reissner-Nordstr$\ddot{o}$m black hole. We formulate the generalized mass flux conservation equation, energy flux conservation and relativistic…

General Relativity and Quantum Cosmology · Physics 2016-05-11 M. Sharif , Sehrish Iftikhar

We studied the spherical accretion of matter by charged black holes on $f(T)$ Gravity. Considering the accretion model of a isentropic perfect fluid we obtain the general form of the Hamiltonian and the dynamic system for the fluid. We have…

General Relativity and Quantum Cosmology · Physics 2018-02-13 Manuel E. Rodrigues , Ednaldo L. B. Junior

The intent of this letter is to point out that the accretion of a ghost condensate by black holes could be extremely efficient. We analyze steady-state spherically symmetric flows of the ghost fluid in the gravitational field of a…

High Energy Physics - Theory · Physics 2009-11-10 Andrei V. Frolov

In this paper we study the accretion of matter onto the black holes and the shadow images obtained by an infalling accretion flow of gas in a theory of massive gravity (MG) with a spontaneously breaking Lorentz symmetry. This black hole…

General Relativity and Quantum Cosmology · Physics 2021-10-20 Abdul Jawad , Kimet Jusufi , M. Umair Shahzad

We present an analytic solution for accretion of a gaseous medium with adiabatic equation of state onto a charged dilaton black hole which moves at a constant velocity. We determine the four-velocity of accreted flow and find that it…

General Relativity and Quantum Cosmology · Physics 2022-06-07 Rong-Jia Yang , Yinan Jia , Lei Jiao

The new, rapidly developing field of theoretical research --- studies of dark energy interacting with black holes (and, in particular, accreting onto black holes) --- is reviewed. The term `dark energy' is meant to cover a wide range of…

General Relativity and Quantum Cosmology · Physics 2014-06-11 E. O. Babichev , V. I. Dokuchaev , Yu. N. Eroshenko
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