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The $N_\ell$ of gravitational wave background experiments

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arxiv 2005.03001 v1 pith:YWUACVCE submitted 2020-05-06 astro-ph.CO gr-qc

classification astro-ph.COgr-qc
keywords experimentsnoisebackgroundformalismgravitationalmappingmodelpower
verification ladder T0 review T1 audit T2 compute T3 formal
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We construct a model for the angular power spectrum of the instrumental noise in interferometer networks mapping gravitational wave backgrounds (GWBs) as a function of detector noise properties, network configuration and scan strategy. We use the model to calculate the noise power spectrum for current and future ground-based experiments, as well as for planned space missions. We present our results in a language similar to that used in cosmic microwave background and intensity mapping experiments, and connect the formalism with the sensitivity curves that are common lore in GWB analyses. Our formalism is implemented in a lightweight python module that we make publicly available at https://github.com/damonge/schNell.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Imprints of Large-Scale Structures in the Anisotropies of the Cosmological Gravitational Wave Background

    astro-ph.CO 2025-05 conditional novelty 6.0 of 10

    The cosmological gravitational wave background is predicted to cross-correlate with galaxy positions through the late integrated Sachs-Wolfe effect, giving a source-discrimination handle and a forecast improvement of ...

  2. \texttt{GWBird}: a toolkit for the characterization of the Stochastic Gravitational Wave Background for Ground, Space, and Pulsar Timing Array detectors

    astro-ph.IM 2025-07 conditional novelty 5.0 of 10

    A new, unified Python package computes overlap reduction functions, power-law integrated sensitivity curves, and angular sensitivity curves for ground, space, and pulsar timing array detectors across all gravitational...

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