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arXiv:1204.6359astro-ph.CO

Hubble Constant, Lensing, and Time Delay in Relativistic MOND

Yong Tian, Chung-Ming Ko, Mu-Chen Chiu

Abstract

Time delay in galaxy gravitational lensing systems has been used to determine the value of Hubble constant. As in other dynamical phenomena at the scale of galaxy, dark matter is often invoked in gravitational lensing to account for the "missing mass" (the apparent discrepancy between the dynamical mass and the luminous mass). Alternatively, modified gravity can be used to explain the discrepancy. In this paper we adopt the Tensor-Vector-Scalar gravity (TeVeS), a relativistic version of MOdified Newtonian Dynamics (MOND), to study gravitational lensing phenomena and derive the formulae needed to evaluate the Hubble constant. We test our method on quasar lensing by elliptical galaxies in the literature. We focus on double-image systems with time delay measurement. Three candidates are suitable for our study: HE 2149-2745, FBQ J0951+2635 and SBS 0909+532. The Hubble constant obtained is consistent with the value used in fitting the CMB result in neutrino cosmological model.

arXiv comments
12 pages, 1 figure
Journal reference
Yong Tian et al. 2013 ApJ 770 154
DOI
doi:10.1088/0004-637X/770/2/154
Subjects
astro-ph.COCosmology and Nongalactic Astrophysics

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  1. The Webb Telescope further deepens the Hubble tension controversy in cosmology 1 comment

    • > Isn’t there loads of evidence for dark matter including direct evidence like gravitational lensing? There is an equivalent boatload of evidence for modified gravity that can't be explained by particle dark matter [1], but one set of observations is hand waved away as a minor…

      naaskingView on HNParent context

  2. Dark Matter vs. Modified Gravity: A Trialogue (2012) 1 comment

    • From a bit of armchair research this Friday, here are some articles on the connection between MOND and the Hubble constant: https://en.wikipedia.org/wiki/MOND https://arxiv.org/abs/1204.6359 https://arxiv.org/abs/1703.06110 http://file.scirp.org/Html/1-4500356_51478.htm…

      zackmorrisView on HNParent context

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