There are No Black Holes—Pseudo-Complex General Relativity

2015 ◽  
pp. 33-42
Author(s):  
Walter Greiner ◽  
Peter O. Hess ◽  
Mirko Schäfer ◽  
Thomas Schönenbach ◽  
Gunther Caspar
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Complex General Relativity

Black Holes or Gray Stars? That’s the Question: Pseudo-Complex General Relativity

2013 ◽  
pp. 313-321
Author(s):  
Peter O. Hess ◽  
W. Greiner ◽  
T. Schönenbach ◽  
G. Caspar
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Complex General Relativity

scholarly journals PSEUDO-COMPLEX GENERAL RELATIVITY: SCHWARZSCHILD, REISSNER–NORDSTRÖM AND KERR SOLUTIONS

2012 ◽  
Vol 21 (02) ◽  
pp. 1250015 ◽  
Author(s):  
GUNTHER CASPAR ◽  
THOMAS SCHÖNENBACH ◽  
PETER OTTO HESS ◽  
MIRKO SCHÄFER ◽  
WALTER GREINER
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Black Hole ◽  
Dark Energy ◽  
Experimental Verification ◽  
Circular Orbit ◽  
Large Mass ◽  
Schwarzschild Solution ◽  
Energy Part ◽  
Complex General Relativity

The pseudo-complex General Relativity (pc-GR) is further considered. A new projection method is proposed. It is shown that the pc-GR introduces automatically terms into the system which can be interpreted as dark energy. The modified pseudo-complex Schwarzschild solution is investigated. The dark energy part is treated as a liquid and possible solutions are discussed. As a consequence, the collapse of a large stellar mass into a singularity at r = 0 is avoided and no event-horizon is formed. Thus, black holes do not exist. The resulting object can be viewed as a gray star. It contains no singularity which emphasizes, again, that it is not a black hole. The corrections implied by a charged large mass object (Reissner–Nordström) and a rotating gray star (Kerr) are presented. For the latter, a special solution is presented. Finally, we will consider the orbital speed of a mass in a circular orbit and suggest a possible experimental verification.

THERE ARE NO BLACK HOLES — PSEUDO-COMPLEX GENERAL RELATIVITY: REVIEW AND SOME PREDICTIONS

2010 ◽  
Vol 19 (08n10) ◽  
pp. 1217-1232 ◽  
Author(s):  
P. O. HESS ◽  
L. MAGHLAOUI ◽  
W. GREINER
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Dark Energy ◽  
Large Mass ◽  
Central Mass ◽  
Perihelion Shift ◽  
Complex Extension ◽  
Special Case ◽  
Complex General Relativity ◽  
Mass Concentrations

The pseudo-complex extension of general relativity will be reviewed, and as a special case the pseudo-complex Schwarzschild metric will be discussed. As a consequence of the pseudo-complex extension, dark energy which accumulates around central mass concentrations arises. The collapse of a large mass will be avoided due to the presence of dark energy. Some experimental consequences will be discussed, like the redshift around large mass concentrations and the perihelion shift of Mercury.

Beyond the Schwarzschild Metric

2018 ◽  
Author(s):  
David M. Wittman
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Gravitational Waves ◽  
Test Particle ◽  
Direct Detection ◽  
Relativistic Effects ◽  
Big Bang ◽  
Clusters Of Galaxies ◽  
General Relativistic ◽  
The Universe

General relativity explains much more than the spacetime around static spherical masses.We briefly assess general relativity in the larger context of physical theories, then explore various general relativistic effects that have no Newtonian analog. First, source massmotion gives rise to gravitomagnetic effects on test particles.These effects also depend on the velocity of the test particle, which has substantial implications for orbits around black holes to be further explored in Chapter 20. Second, any changes in the sourcemass ripple outward as gravitational waves, and we tell the century‐long story from the prediction of gravitational waves to their first direct detection in 2015. Third, the deflection of light by galaxies and clusters of galaxies allows us to map the amount and distribution of mass in the universe in astonishing detail. Finally, general relativity enables modeling the universe as a whole, and we explore the resulting Big Bang cosmology.

scholarly journals Driven black holes: from Kolmogorov scaling to turbulent wakes

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Tomas Andrade ◽  
Christiana Pantelidou ◽  
Julian Sonner ◽  
Benjamin Withers
Keyword(s):  
Nonlinear Dynamics ◽  
Black Holes ◽  
General Relativity ◽  
Black Hole ◽  
Strong Field ◽  
De Sitter ◽  
Event Horizons ◽  
Binary Mergers ◽  
Tidal Deformations ◽  
Proof Of Principle

Abstract General relativity governs the nonlinear dynamics of spacetime, including black holes and their event horizons. We demonstrate that forced black hole horizons exhibit statistically steady turbulent spacetime dynamics consistent with Kolmogorov’s theory of 1941. As a proof of principle we focus on black holes in asymptotically anti-de Sitter spacetimes in a large number of dimensions, where greater analytic control is gained. We focus on cases where the effective horizon dynamics is restricted to 2+1 dimensions. We also demonstrate that tidal deformations of the horizon induce turbulent dynamics. When set in motion relative to the horizon a deformation develops a turbulent spacetime wake, indicating that turbulent spacetime dynamics may play a role in binary mergers and other strong-field phenomena.

scholarly journals Generalisation for regular black holes on general relativity to f(R) gravity

2016 ◽  
Vol 76 (5) ◽  
Author(s):  
Manuel E. Rodrigues ◽  
Júlio C. Fabris ◽  
Ednaldo L. B. Junior ◽  
Glauber T. Marques
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Regular Black Holes

scholarly journals Ray-tracing in pseudo-complex General Relativity

2014 ◽  
Vol 442 (1) ◽  
pp. 121-130 ◽  
Author(s):  
T. Schönenbach ◽  
G. Caspar ◽  
P. O. Hess ◽  
T. Boller ◽  
A. Müller ◽  
...  
Keyword(s):  
General Relativity ◽  
Ray Tracing ◽  
Complex General Relativity
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