Terrestrial Sagnac delay in scalar-tensor-vector-gravity

Abstract

The scalar-tensor-vector-gravity (STVG), a prototype of modified gravity developed by Moffat, can correctly explain galaxy rotation curves, cluster dynamics, Bullet Cluster phenomena and cosmological data without invoking the observationally elusive general relativistic (GR) dark matter. Further, recent observations of neutron star masses are shown to defy some GR predictions, whereas STVG turns out to be more consistent with those observations. These successes indicate that STVG could be a potential candidate for a new theory of gravity. However, an important question concerns the possible range of values of the STVG dimensionless parameter $\alpha$ imposed by various physical scenarios. In the literature, the range $0.03<\alpha <2.47$ corresponding to different central source masses has been suggested. We show here that the $\alpha$ can be considerably constrained into the range $0<\alpha <10^{-5}$ assuming that the updated GPS fluctuation does not exceed the $\alpha$-dependent correction to the terrestrial Sagnac delay.

18 pages

References in corpus (45)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Results from a search for dark matter in the complete LUX exposure
• Relativistic gravitation theory for the MOND paradigm
• Dark Matter Results from 225 Live Days of XENON100 Data
• Modified f(R) gravity consistent with realistic cosmology: from matter dominated epoch to dark energy universe
• Scalar-Tensor-Vector Gravity Theory
• Search for Low-Mass WIMPs with SuperCDMS
• A galaxy lacking dark matter
• Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX data
• On the Mass Distribution and Birth Masses of Neutron Stars
• The Neutron Star Mass Distribution
• Black Holes in Modified Gravity (MOG)
• The MOG weak field approximation and observational test of galaxy rotation curves
• Impact of a global quadratic potential on galactic rotation curves
• Modified Gravity Black Holes and their Observable Shadows
• Incidences between points and lines on a two-dimensional variety
• The Bullet Cluster 1E0657-558 evidence shows Modified Gravity in the absence of Dark Matter
• The MOG Weak Field approximation II. Observational test of Chandra X-ray Clusters
• Galaxy Cluster Masses Without Non-Baryonic Dark Matter
• Testing modified gravity with globular cluster velocity dispersions
• Timelike geodesics of a modified gravity black hole immersed in an axially symmetric magnetic field
• Ring-down gravitational waves and lensing observables: How far can a wormhole mimic those of a black hole?
• Accretion disks around black holes in Scalar-Tensor-Vector Gravity
• Modified gravity black hole lensing observables in weak and strong field of gravity
• LIGO GW150914 and GW151226 Gravitational Wave Detection and Generalized Gravitation Theory (MOG)
• Cosmological observations in a modified theory of gravity (MOG)
• Constraining the distribution of dark matter at the Galactic centre using the high-resolution Event Horizon Telescope
• Strong field lensing by Damour-Solodukhin wormhole
• Neutron stars in Scalar-Tensor-Vector Gravity
• NGC 1052-DF2 And Modified Gravity (MOG) Without Dark Matter
• A laser gyroscope system to detect the Gravito-Magnetic effect on Earth
• Applying MOG to lensing: Einstein rings, Abell 520 and the Bullet Cluster
• String effect on the relative time delay in the Kerr-Sen black hole
• Comment on "Impact of a Global Quadratic Potential on Galactic Rotation Curves"
• New Features of Extended Wormhole Solutions in the Scalar Field Gravity Theories
• Lensing observables: Massless dyonic vis-à-vis Ellis wormhole
• Can massless wormholes mimic a Schwarzschild black hole in the strong field lensing?
• The twin paradox and Mach's principle
• Times of arrival (TOA) of signals in the Kerr-MOG black hole
• Vacuum Brans-Dicke theory in the Jordan and Einstein frames: can they be distinguished by lensing?
• Terrestrial Sagnac delay constraining modified gravity models
• Sagnac delay in the Kerr-dS space-time: Implications for Mach's principle
• Dark angular momentum of the galaxy
• Upper limit on NUT charge from the observed terrestrial Sagnac effect