Pith. sign in

REVIEW 7 cited by

Forecasting the sensitivity of Pulsar Timing Arrays to gravitational wave backgrounds

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2404.02864 v1 pith:P6QL2CBU submitted 2024-04-03 astro-ph.CO astro-ph.HEgr-qchep-ph

Forecasting the sensitivity of Pulsar Timing Arrays to gravitational wave backgrounds

classification astro-ph.CO astro-ph.HEgr-qchep-ph
keywords sgwbframeworkfrequencygravitationalpulsarsensitivitytimingwave
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

Pulsar Timing Array (PTA) observations hinted towards the existence of a stochastic gravitational wave background (SGWB) in the nHz frequency band. Still, the nature of the SGWB signal cannot be confidently inferred from current data, and the leading explanation invokes mergers of supermassive black holes. If confirmed, such discovery would not only represent a turning point in our understanding of astrophysics, but it may severely limit the capability of searching for additional cosmological sources in the nHz frequency range. In this work, we build a simple framework to forecast the sensitivity of future PTA configurations and assess the parameter estimation of SGWB, which could consist of several contributions. We release the python code fastPTA implementing this framework and ready to use.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 7 Pith papers

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

  1. Gravitational wave emission from nonspherical collapse in an early matter-dominated era using N-body simulations

    astro-ph.CO 2026-05 unverdicted novelty 7.0

    Full numerical N-body treatment is required for reliable gravitational wave predictions from nonspherical collapse in early matter-dominated eras, with resulting spectra mappable to detector sensitivities via horizon ...

  2. Can Oscillatory and Persistent Nonlinearities Be Bridged in Black Hole Ringdown?

    gr-qc 2026-03 unverdicted novelty 6.0

    Quadratic quasinormal modes and Christodoulou memory effect are related through bridge coefficients depending primarily on remnant black hole parameters.

  3. Probing Graviton Mass with MeerKAT PTA and SKA--PTA Forecasts

    astro-ph.CO 2026-07 conditional novelty 5.0

    MPTA 4.5-year data imply a 90% upper bound of mg < 2.1 × 10−23 eV/c2, consistent with massless gravitons; SKA-PTA could reach ~10−25 eV/c2.

  4. The NANOGrav 15 yr Data Set: Customized Chromatic Noise Models

    astro-ph.HE 2026-06 unverdicted novelty 5.0

    Customized chromatic noise models for 67 pulsars detect non-dispersive delays in 21 cases, alter achromatic noise inferences in 19, and enable solar wind density estimates over 1.5 cycles.

  5. Can Oscillatory and Persistent Nonlinearities Be Bridged in Black Hole Ringdown?

    gr-qc 2026-03 unverdicted novelty 5.0

    Quadratic quasinormal modes and the memory effect in black hole ringdown are related through bridge coefficients that depend primarily on remnant black hole parameters.

  6. The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses

    astro-ph.CO 2026-06 unverdicted novelty 4.0

    Customized chromatic noise models applied to NANOGrav 15 yr data raise the Bayes factor for Hellings-Downs GWB correlations by a factor of ~8, lower the amplitude to 2.1e-15, and increase the spectral index to 3.5.

  7. QCD axion from broken scale symmetry

    hep-th 2026-05 unverdicted novelty 4.0

    Dilaton from broken scale symmetry meets all conditions for non-compact QCD axion cosmology including non-periodicity and timely domain-wall collapse.