Can extra dimensional effects replace dark matter ?
arXiv:gr-qc/0409023 · doi:10.1016/j.physletb.2005.01.043
Abstract
In the braneworld scenario, the four dimensional effective Einstein equation has extra terms which arise from the embedding of the 3-brane in the bulk. We show that in this modified theory of gravity, it is possible to model observations of galaxy rotation curves and the X-ray profiles of clusters of galaxies, without the need for dark matter. In this scenario, a traceless tensor field which arises from the projection of the bulk Weyl tensor on the brane, provides the extra gravitational acceleration which is usually explained through dark matter. We also predict that gravitational lensing observations can possibly discriminate between the proposed higher dimensional effects and dark matter, the deflection angles predicted in the proposed scenario being around 75% to 80% of the usual predictions based on dark matter.
10 pages, no figures, RevTex4
References in corpus (7)
- Cosmological parameters from SDSS and WMAP
- The 3D power spectrum of galaxies from the SDSS
- MOND and the "Dearth of Dark Matter in Ordinary Elliptical Galaxies"
- Can the galactic rotation curves be explained in brane world models?
- Vacuum solutions of the gravitational field equations in the brane world model
- Modelling galaxy halos using dark matter with pressure
- Braneworld Cosmology and Holography
Cited by in corpus (32)
- The virial theorem and the dynamics of clusters of galaxies in the brane world models
- Galactic metric, dark radiation, dark pressure and gravitational lensing in brane world models
- Jacobi stability of the vacuum in the static spherically symmetric brane world models
- Galactic dark matter as a bulk effect on the brane
- Constraining the Cosmology of the Phantom Brane using Distance Measures
- Spherically symmetric problem on the brane and galactic rotation curves
- Gravitational lensing in braneworld gravity: formalism and applications
- Decoding signatures of extra dimensions and estimating spin of quasars from the continuum spectrum
- Wormhole on the Brane with Ordinary Matter: The Broader View
- Structure formation on the brane: A mimicry
- Galactic rotation curves in brane world models
- Scalar field haloes as gravitational lenses
- Second-order light deflection by tidal charged black holes on the brane
- The luminosity-redshift relation in brane-worlds: I. Analytical results
- Barrow and Tsallis entropies after the DESI DR2 BAO data
- Gravitational instability on the brane: the role of boundary conditions
- Cosmological perturbations on the Phantom brane
- Does black hole continuum spectrum signal f(R) gravity in higher dimensions?
- Image formation in weak gravitational lensing by tidal charged black holes
- Constraining phantom braneworld model from cosmic structure sizes
- Gravity theory with a dark extra dimension
- Gravitational metamaterials from optical properties of spacetime media
- Is dark matter an extra-dimensional effect?
- Kinematics of Radion field: A possible source of dark matter
- Cosmological screening and the phantom braneworld model
- Can local bulk effects explain the galactic dark matter?
- Dynamic domain walls in Maxwell-Dilaton background
- Domain walls in Born-Infeld-dilaton background
- A no-boundary proposal for braneworld perturbations
- Moduli stabilization with bulk scalar in nested doubly warped braneworld model
- Generalized virial theorem in warped DGP brane-world
- Exact Solutions with Asymptotically Flat Galactic Rotation Curves