Multimessenger Pulsar Timing Array Constraints on Supermassive Black Hole Binaries Traced by Periodic Light Curves
First published: 2021
Brief summary
Compiles a catalog of 149 periodic active-galactic-nucleus light curves with periods of years to decades, cross-checked against pulsar timing array gravitational-wave limits.
Article
Multimessenger Pulsar Timing Array Constraints on Supermassive Black Hole Binaries Traced by Periodic Light Curves is a peer-reviewed journal article published by The Astrophysical Journal (IOP) in 2021. It compiles a catalogue of 149 periodic active-galactic-nucleus light curves with periods of years to decades, cross-checked against pulsar timing array gravitational-wave limits.
Period range: years to decades across catalogue of 149 objects. It also considers combines optical/IR periodicity catalogs with pulsar timing array (PTA) data. This gives the cycle claim a specific numerical and evidential setting rather than presenting periodicity only as a visual impression.
Gravitational waves emitted by supermassive black hole binary systems with periods of years to decades are expected to be the most powerful sources of gravitational waves in the universe; the authors assembled a catalogue of 149 periodic light curves. The interpretation is strongest when it survives red-noise modelling, uneven sampling, spectral-window effects and correction for the number of frequencies searched.
For cycles researchers, the article brings together pulsar timing arrays, supermassive black hole binaries, periodic light curves, gravitational waves. It is relevant to the detection and interpretation of periodic signals in astronomical observations, where sampling, red noise and instrumental effects can imitate or obscure genuine cycles.
Because it is a peer-reviewed journal article, the article is a strong starting point for discussion in the Cosmology & Astronomy forum, although its conclusions should still be compared with later replications and updated datasets.
Source details and credits
- Source / publisher: The Astrophysical Journal (IOP)
- Source type: Peer-reviewed journal article
- URL type: WWW
- Credits: The Astrophysical Journal (IOP)
- URL: https://iopscience.iop.org/article/10.3847/1538-4357/ac01c5