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Communication Dans Un Congrès Année : 2020

No tension between pulsar timing array upper limits on the nano-Hertz gravitational wave background and assembly models of massive black hole binaries

Résumé

Pulsar timing arrays provide a means to observe the nano-Hertz gravitational wave background from the population of merging massive black hole binaries. Observations are placing increasingly stringent upper limits on the gravitational wave background. Upper limits and future detections will enable the study of the properties of the merging population. Recent upper limits have cast doubt on current predictions of the gravitational wave background. Here we perform a Bayesian analysis comparing upper limits to astrophysical prediction. So far models are consistent with observation. These proceedings summarise previous work in Ref. [1].
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Dates et versions

hal-02564665 , version 1 (06-05-2020)

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Hannah Middleton, Siyuan Chen, Walter del Pozzo, Alberto Sesana, Alberto Vecchio. No tension between pulsar timing array upper limits on the nano-Hertz gravitational wave background and assembly models of massive black hole binaries. 16th International Conference on Topics in Astroparticle and Underground Physics, Sep 2019, Toyama, Japan. pp.012214, ⟨10.1088/1742-6596/1468/1/012214⟩. ⟨hal-02564665⟩
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