Abstract

Based on general relativity, J. R. Oppenheimer proved that massive celestial bodies may collapse into singular black holes with infinite densities. By analyzing the original paper of Oppenheimer, this paper reveals that the calculations had a series and serious of mistakes. The basic problem is that the calculation supposes that the density of celestial body does not change with space-time coordinates. The density is firstly assumed invariable with space coordinates and then it is assumed invariable with time. But at last, the conclusion that the density of a celestial body becomes infinity is deduced. The premise contradicts with conclusion. In fact, there is no restriction on the initial density and radius for celestial body in the calculation. According to the calculation results of Oppenheimer, a cloud of thin gas may also collapse into singular black hole under the action of gravity. The calculations neglect great rotating speeds of massive and high density celestial bodies which would make them falling apart rather than collapsing into singularities. Because we do not know the function relations that material densities depend on space-time coordinates in advance, there exists the rationality problem of procedure using the Einstein’s equation of gravity field to calculate material collapse. Besides these physical problems, the calculation of Oppenheimer also has some obvious mistakes in mathematics. Another improved method to calculate massive celestial body’s collapse also has similar problems. The results are also unreliable. The conclusion of this paper is that up to now general relativity actually has not proved that massive celestial bodies may collapse into singularity black holes.

Highlights

  • Only the Newtonian theory of gravity is used without involving general relativity

  • That is to say, according to Oppenheimer’s calculation, a cloud of thin gas may collapse into singular black hole under the action of gravity

  • The result of improved calculation is equal to say that according to the Newtonian theory, arbitrary celestial body can collapse into singularity! It is certain that something is wrong in the calculations

Read more

Summary

Introduction

In order to solve the Einstein’s equation of gravity for material collapse, we should know dynamic energy momentum tensor in advance including the forms of material density changing with space-time coordinates. If we have known the forms of material density changing with space-time coordinates, we can judge directly whether or not massive celestial body collapses In this case, we do not need to solve the Einstein’s equation of gravity at all. According to the principle of general relativity, gravity field would be eliminated locally and space-time would become flat In this situation, there is no problem of matter collapsing again. The conclusion is that both improved and Oppenheimer’s calculations have not proved that massive material may collapse into singular black holes

The External Solution of Material Sphere
The Solution in Vacuum outside Sphere and the Boundary Condition
The Problems Exist in the Calculations Above
The External Solution of Sphere
The Inner Solution of Sphere
The Coordinate Transformation of Tolman Solution
The Boundary Conditions
The Collapse of Celestial Body
The Problems Exist in the Calculations of Oppenheimer
Discussions
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call