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  First Predictions of the Angular Power Spectrum of the Astrophysical Gravitational Wave Background

Cusin, G., Dvorkin, I., Pitrou, C., & Uzan, J.-P. (2018). First Predictions of the Angular Power Spectrum of the Astrophysical Gravitational Wave Background. Physical Review Letters, 120: 231101. doi:10.1103/PhysRevLett.120.231101.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-F49A-F Version Permalink: http://hdl.handle.net/21.11116/0000-0001-98CE-C
Genre: Journal Article

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 Creators:
Cusin, Giulia, Author
Dvorkin, Irina1, Author              
Pitrou, Cyril, Author
Uzan, Jean-Philippe, Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO, Astrophysics, Galaxy Astrophysics, astro-ph.GA,General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
 Abstract: We present the first predictions for the angular power spectrum of the astrophysical gravitational wave background constituted of the radiation emitted by all resolved and unresolved astrophysical sources. Its shape and amplitude depend on both the astrophysical properties on galactic scales and on cosmological properties. We show that the angular power spectrum behaves as $C_{\ell}\propto 1/{\ell}$ on large scales and that relative fluctuations of the signal are of order 30% at 100 Hz. We also present the correlations of the astrophysical gravitational wave background with weak-lensing and galaxy distribution. These numerical results pave the way to the study of a new observable at the crossroad between general relativity, astrophysics and cosmology.

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 Dates: 2018-03-082018
 Publication Status: Published in print
 Pages: 5 pages, 4 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1803.03236
URI: http://arxiv.org/abs/1803.03236
DOI: 10.1103/PhysRevLett.120.231101
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 120 Sequence Number: 231101 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1