A comparison of two theories to explain the rotation curves in galaxies without dark matter particles

The aim was to demonstrate the possible compatibility between the gravitational theory of Hajdukovic, which depends upon the existence of virtual particle pairs in vacuo, and that of emergent gravity according to Verlinde, and to derive new physical relationships. These theories, which avoid the nec...

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Bibliographic Details
Published in:Astrophysics and space science 2018-12, Vol.363 (12), p.1, Article 254
Main Author: Jervis, Barrie W.
Format: Article
Language:English
Subjects:
Astrobiology
Astronomy
Astrophysics
Astrophysics and Astroparticles
Cosmology
Dark matter
Galactic Astrophysics
Galactic rotation
Galaxies
Gravitation theory
Gravitational fields
Gravity theories
Observations and Techniques
Original Article
Particle density (concentration)
Physics
Physics and Astronomy
Pions
Sciences of the Universe
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
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Summary:The aim was to demonstrate the possible compatibility between the gravitational theory of Hajdukovic, which depends upon the existence of virtual particle pairs in vacuo, and that of emergent gravity according to Verlinde, and to derive new physical relationships. These theories, which avoid the necessity for postulating dark matter, and necessary, associated concepts are described. Then, assuming the validity of these theories, the following new results are obtained. Assuming a spherical galaxy model, the theories predict approximately the same radial distance from the galactic centre for the onset of enhanced gravitational fields. This agreement is used (1) to show that the virtual particle density of the vacuum at this distance depends only upon the Hubble scale and Planck’s constant, (2) to calculate its value, and (3) to show that the particles consist of closely packed pions.
ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-018-3474-z