Peculiar Velocity and Deaberration of the Sky

Abstract

Recent studies have found the earth's peculiar velocity to be significant in microwave background based tests for compact cosmic topology, and modifications to these tests have been proposed. Tests of non-gaussianity, weak lensing analysis and new tests using improved CMB data will also be sensitive to peculiar velocity. We propose here to simplify matters by showing how to construct a deaberrated CMB map to which any test requiring a Hubble flow viewpoint can be applied without further complication. In a similar manner deaberration can also be applied to object surveys used for example in topological searches and matter distribution analysis. In particular we have produced a revised list of objects with z > 1.0 using the NASA/IPAC Extragalactic Database.

8 pages, 1 figure, v4 accepted by ApJ

References in corpus (3)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing Methods and Systematic Errors Limits
• Peculiar velocity effects in high-resolution microwave background experiments
• Can COBE see the shape of the universe?

Cited by in corpus (10)

• The Signature of Proper Motion in the Microwave Sky
• On the significance of power asymmetries in Planck CMB data at all scales
• Measuring our peculiar velocity on the CMB with high-multipole off-diagonal correlations
• The effect of aberration on partial-sky measurements of the cosmic microwave background temperature power spectrum
• Measuring our Peculiar Velocity by "Pre-deboosting" the CMB
• Kinetic Sunyaev Zeldovich effect in an anisotropic CMB model: measuring low multipoles of the CMB at higher redshifts using intensity and polarization spectral distortions
• Doppler boosting the stochastic gravitational wave background
• New operator approach to the CMB aberration kernels in harmonic space
• An Axisymmetric Object-Based Search for a Flat Compact Dimension
• Astrophysics in 2005