Results 111 to 120 of about 37,815 (249)
We further study the idea that a self-gravitating accretion disc around a supermassive black hole can increase the rate of gradual orbital decay of stellar trajectories (and hence tidal disruption events) by setting some stars on eccentric trajectories ...
Šubr L., Karas V.
doaj +1 more source
Strong deflection gravitational lensing by a modified Hayward black hole
A modified Hayward black hole is a nonsingular black hole. It is proposed that it would form when the pressure generated by quantum gravity can stop matter’s collapse as the matter reaches the Planck density.
Shan-Shan Zhao, Yi Xie
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Many stellar-mass black holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with active galactic nuclei, it is likely that the sBHs reside in a disk.
Barak Rom, Re’em Sari, Dong Lai
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Relativistic Suppression of Black Hole Recoils [PDF]
Numerical-relativity simulations indicate that the black hole produced in a binary merger can recoil with a velocity up to v_max ~ 4,000 km/s with respect to the center of mass of the initial binary.
Baker+20 more
core +2 more sources
High-energy signatures of binary supermassive black holes
Some active galactic nuclei are supposed to harbor binary systems of supermassive black holes. They are an attractive target for gravitational wave experiments.
Vila Gabriela S.+2 more
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Supermassive Black Holes and Galaxy Formation [PDF]
Abstract Predicted by the theory of general relativity, black holes are among the strangest objects known to exist. A point in space usually has a past and a future. An explosion is an example of a point in space–time. The explosion is both at a specific point in space and at a specific time.
openaire +3 more sources
Is there life inside black holes?
Bound inside rotating or charged black holes, there are stable periodic planetary orbits, which neither come out nor terminate at the central singularity. Stable periodic orbits inside black holes exist even for photons. These bound orbits may be defined
Balek V+15 more
core +1 more source
Null Geodesics and Strong Field Gravitational Lensing of Black Hole with Global Monopole
We study two interesting features of a black hole with an ordinary as well as phantom global monopole. Firstly, we investigate null geodesics which imply unstable orbital motion of particles for both cases.
M. Sharif, Sehrish Iftikhar
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MEASURING SUPERMASSIVE BLACK HOLE SPINS IN AGN
Measuring the spins of supermassive black holes (SMBHs) in active galactic nuclei (AGN) can inform us about the relative role of gas accretion vs. mergers in recent epochs of the life of the host galaxy and its AGN.
Laura Brenneman
doaj +1 more source
We consider the consequences of SIDM for a velocity dependent cross section per unit mass. Accretion of SIDM onto seed black holes can produce supermassive black holes that are too large for certain combinations of parameters,which is used to obtain a ...
Dalcanton J. J.+7 more
core +1 more source