Unraveling the nature of Gravity through our clumpy Universe

Abstract

We propose a new probe to test the nature of gravity at various redshifts through large-scale cosmological observations. We use our void catalog, extracted from the Sloan Digital Sky Survey (SDSS, DR10), to trace the distribution of matter along the lines of sight to SNe Ia that are selected from the Union 2 catalog. We study the relation between SNe Ia luminosities and convergence and also the peculiar velocities of the sources. We show that the effects, on SNe Ia luminosities, of convergence and of peculiar velocities predicted by the theory of general relativity and theories of modified gravities are different and hence provide a new probe of gravity at various redshifts. We show that the present sparse large-scale data does not allow us to determine any statistically- significant deviation from the theory of general relativity but future more comprehensive surveys should provide us with means for such an exploration.

arXiv commentEssay received honorable mention in the Gravity Research Foundation 2014 essay competition. To appear in IJMPD. 10 pages, 2 figures

References in corpus (21)

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• The Cosmological Constant and Dark Energy
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Modified Gravity and Cosmology
• f(R) theories
• Cosmological Imprint of an Energy Component with General Equation of State
• 4D Gravity on a Brane in 5D Minkowski Space
• The galileon as a local modification of gravity
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Observational Probes of Cosmic Acceleration
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Massive Gravity
• The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
• Cosmology and fundamental physics with the Euclid satellite
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• Searching for modified growth patterns with tomographic surveys
• Inhomogeneous cosmological models: exact solutions and their applications
• The growth rate of cosmic structure from peculiar velocities at low and high redshifts
• Reconstruction of primordial density fields
• Structure formation in $f(R)$ gravity: A distinguishing probe between the dark energy and modified gravity
• Simultaneous effect of Modified Gravity and Primordial Non-Gaussianity in Large Scale Structure Observations

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