TY - JOUR

T1 - Linear potentials in galaxy halos by asymmetric wormholes

AU - Bahamonde, Sebastian

AU - Benisty, David

AU - Guendelman, Eduardo I.

N1 - Publisher Copyright:
© 2018 by the authors.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - A spherically symmetric space-time solution for a diffusive two measures theory is studied. An asymmetric wormhole geometry is obtained where the metric coefficients has a linear term for galactic distances and the analysis of Mannheim and collaborators, can then be used to describe the galactic rotation curves. For cosmological distances a de-Sitter space-time is realized. Center of gravity coordinates for the wormhole are introduced which are the most suitable for the collective motion of a wormhole. The wormholes connect universes with different vacuum energy densities which may represent different universes in a “landscape scenario”. The metric coefficients depend on the asymmetric wormhole parameters. The coefficient of the linear potential is proportional to both the mass of the wormhole and the cosmological constant of the observed universe. Similar results are also expected in other theories like k-essence theories, that may support wormholes.

AB - A spherically symmetric space-time solution for a diffusive two measures theory is studied. An asymmetric wormhole geometry is obtained where the metric coefficients has a linear term for galactic distances and the analysis of Mannheim and collaborators, can then be used to describe the galactic rotation curves. For cosmological distances a de-Sitter space-time is realized. Center of gravity coordinates for the wormhole are introduced which are the most suitable for the collective motion of a wormhole. The wormholes connect universes with different vacuum energy densities which may represent different universes in a “landscape scenario”. The metric coefficients depend on the asymmetric wormhole parameters. The coefficient of the linear potential is proportional to both the mass of the wormhole and the cosmological constant of the observed universe. Similar results are also expected in other theories like k-essence theories, that may support wormholes.

KW - Asymmetric wormholes

KW - Diffusive action

KW - Galactic rotation curves

KW - Two measure theories

UR - http://www.scopus.com/inward/record.url?scp=85064403613&partnerID=8YFLogxK

U2 - 10.3390/universe4110112

DO - 10.3390/universe4110112

M3 - Article

AN - SCOPUS:85064403613

SN - 2218-1997

VL - 4

JO - Universe

JF - Universe

IS - 11

M1 - 112

ER -