Superluminal velocity and deviation from Newton's inverse square law
type: Item
instance of: scholarly article
title: Superluminal velocity and deviation from Newton's inverse square law
zbMATH Open document ID: 0663.70024
DOI: 10.1007/BF00638994
published in: Astrophysics and Space Science
publication date: 1988-01-01T00:00:00Z
review text: Starting from the theory of gravitation in flat space-time of the author [Gen. Relativ. Gravitation 13, 865-872 (1981; Zbl 0486.53023)], the gravitational field of a static spherically-symmetric body is studied. The author [ibid. 14, 803 ff. (1982)] has shown that this field in the exterior of the body depends on a parameter which is fixed by the interior solution, i.e., it depends on the density of matter, the pressure, the equation of state, etc. If this parameter is small, the results for the well-known effects, i.e., redshift, deflection of light, perihelion shift, and radar time-delay, agree with those of general relativity. In this paper, we study these effects for larger values of this parameter. Furthermore, for sufficiently large positive values of the parameter, in the neighbourhood of the body the radial velocity of light can exceed several times the vacuum light-velocity. Therefore, the components of such an object can move away with velocities a few times greater than that of light in agreement with the observed superluminal velocities in extragalactic objects.
Mathematics Subject Classification ID: 70F15
Mathematics Subject Classification ID: 83D05
zbMATH DE Number: 4085108
zbMATH Keywords: theory of gravitation in flat space-time
zbMATH Keywords: static spherically-symmetric body
zbMATH Keywords: redshift
zbMATH Keywords: deflection of light
zbMATH Keywords: perihelion shift
zbMATH Keywords: radar time-delay
zbMATH Keywords: radial velocity of light
zbMATH Keywords: superluminal velocities
zbMATH Keywords: extragalactic objects
author: Walter Petry
MaRDI profile type: Publication
cites work: Gravitation in flat space-time
cites work: The gravitational field of static spherically symmetric bodies
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description: scientific article; zbMATH DE number 4085108