The NANOGrav 11 Year Data Set: Pulsar-timing constraints on the Stochastic Gravitational-wave Background
Zaven Arzoumanian; P. T. Baker; Adam Brazier; Sarah Burke-Spolaor; S. J. Chamberlin; Shami Chatterjee; B. Christy; J. M. Cordes · 2024 · Figshare
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
The finding, in one line
“While we find no evidence for a GWB, we place constraints on a population of inspiraling supermassive black hole (SMBH) binaries, a network of decaying cosmic strings, and a primordial GWB.”
Abstract
We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released 11 year data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). While we find no evidence for a GWB, we place constraints on a population of inspiraling supermassive black hole (SMBH) binaries, a network of decaying cosmic strings, and a primordial GWB. For the first time, we find that the GWB constraints are sensitive to the solar system ephemeris (SSE) model used and that SSE errors can mimic a GWB signal. We developed an approach that bridges systematic SSE diff
Abstract by Zaven Arzoumanian; P. T. Baker; Adam Brazier; Sarah Burke-Spolaor; S. J. Chamberlin; Shami Chatterjee; B. Christy; J. M. Cordes, Figshare (2024) — licensed CC BY 4.0.
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Negative / Null Result ReportThe NANOGrav 11 Year Data Set: Pulsar-timing Constraints on the Stochastic Gravitational-wave Background
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Metadata source: OpenAlex · DOI 10.25916/sut.26295832.v1