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Large-scale structure with gravitational waves. I. Galaxy clustering

Jeong, Donghui and Schmidt, Fabian (2012) Large-scale structure with gravitational waves. I. Galaxy clustering. Physical Review D, 86 (8). Art. No. 083512. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20121116-084948137

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Abstract

Observed angular positions and redshifts of large-scale structure tracers such as galaxies are affected by gravitational waves through volume distortion and magnification effects. Thus, a gravitational wave background can in principle be probed through clustering statistics of large-scale structures. We calculate the observed angular clustering of galaxies in the presence of a gravitational wave background at linear order including all relativistic effects. For a scale-invariant spectrum of gravitational waves, the effects are most significant at the smallest multipoles (2≤ℓ≤5), but typically suppressed by six or more orders of magnitude with respect to scalar contributions for currently allowed amplitudes of the inflationary gravitational wave background. We also discuss the most relevant second-order terms, corresponding to the distortion of tracer correlation functions by gravitational waves. These provide a natural application of the approach recently developed in Schmidt and Jeong {arXiv:1204.3625 [Phys. Rev. D (to be published)]}.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.86.083512 DOIArticle
http://link.aps.org/doi/10.1103/PhysRevD.86.083512PublisherArticle
Additional Information:© 2012 American Physical Society. Received 30 May 2012; published 8 October 2012. We would like to thank Chris Hirata and Marc Kamionkowski for helpful discussions. F. S. is supported by the Gordon and Betty Moore Foundation at Caltech. D. J. was supported by NASA NNX12AE86G.
Group:Moore Center for Theoretical Cosmology and Physics
Funders:
Funding AgencyGrant Number
Gordon and Betty Moore FoundationUNSPECIFIED
NASANNX12AE86G
Issue or Number:8
Classification Code:PACS: 98.65.Dx, 98.65.-r, 98.80.Jk
Record Number:CaltechAUTHORS:20121116-084948137
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20121116-084948137
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35503
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Nov 2012 22:16
Last Modified:03 Oct 2019 04:28

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