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Title: Cosmicflows-3: Cold Spot Repeller?

Abstract

The three-dimensional gravitational velocity field within z ∼ 0.1 has been modeled with the Wiener filter methodology applied to the Cosmicflows-3 compilation of galaxy distances. The dominant features are a basin of attraction and two basins of repulsion. The major basin of attraction is an extension of the Shapley concentration of galaxies. One basin of repulsion, the Dipole Repeller, is located near the anti-apex of the cosmic microwave background dipole. The other basin of repulsion is in the proximate direction toward the “Cold Spot” irregularity in the cosmic microwave background. It has been speculated that a vast void might contribute to the amplitude of the Cold Spot from the integrated Sachs–Wolfe effect.

Authors:
; ;  [1];  [2];  [3];  [4]
  1. University of Lyon, UCB Lyon 1, CNRS/IN2P3, IPN, Lyon (France)
  2. Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States)
  3. Racah Institute of Physics, Hebrew University, Jerusalem, 91904 (Israel)
  4. Institut de Recherche sur les Lois Fondamentales de l’Univers, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette (France)
Publication Date:
OSTI Identifier:
22654389
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 847; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABUNDANCE; AMPLITUDES; CONCENTRATION RATIO; DIPOLES; FILTERS; GALAXIES; GRAVITATION; RED SHIFT; RELICT RADIATION; THREE-DIMENSIONAL CALCULATIONS; UNIVERSE; VELOCITY

Citation Formats

Courtois, Hélène M., Graziani, Romain, Dupuy, Alexandra, Tully, R. Brent, Hoffman, Yehuda, and Pomarède, Daniel. Cosmicflows-3: Cold Spot Repeller?. United States: N. p., 2017. Web. doi:10.3847/2041-8213/AA88B2.
Courtois, Hélène M., Graziani, Romain, Dupuy, Alexandra, Tully, R. Brent, Hoffman, Yehuda, & Pomarède, Daniel. Cosmicflows-3: Cold Spot Repeller?. United States. doi:10.3847/2041-8213/AA88B2.
Courtois, Hélène M., Graziani, Romain, Dupuy, Alexandra, Tully, R. Brent, Hoffman, Yehuda, and Pomarède, Daniel. Wed . "Cosmicflows-3: Cold Spot Repeller?". United States. doi:10.3847/2041-8213/AA88B2.
@article{osti_22654389,
title = {Cosmicflows-3: Cold Spot Repeller?},
author = {Courtois, Hélène M. and Graziani, Romain and Dupuy, Alexandra and Tully, R. Brent and Hoffman, Yehuda and Pomarède, Daniel},
abstractNote = {The three-dimensional gravitational velocity field within z ∼ 0.1 has been modeled with the Wiener filter methodology applied to the Cosmicflows-3 compilation of galaxy distances. The dominant features are a basin of attraction and two basins of repulsion. The major basin of attraction is an extension of the Shapley concentration of galaxies. One basin of repulsion, the Dipole Repeller, is located near the anti-apex of the cosmic microwave background dipole. The other basin of repulsion is in the proximate direction toward the “Cold Spot” irregularity in the cosmic microwave background. It has been speculated that a vast void might contribute to the amplitude of the Cold Spot from the integrated Sachs–Wolfe effect.},
doi = {10.3847/2041-8213/AA88B2},
journal = {Astrophysical Journal Letters},
number = 1,
volume = 847,
place = {United States},
year = {Wed Sep 20 00:00:00 EDT 2017},
month = {Wed Sep 20 00:00:00 EDT 2017}
}