Work

White Noises on Different Stokes Components of Six Millisecond Pulsars

Year: 2026

Type: article

Abstract: We presented measurements of jitter noise and radiometer noise for the Stokes parameters I , L , and V in six millisecond pulsars from the International Pulsar Timing Array sample, based on FAST observations. Our analysis shows that the radiometer noise in Stokes I is lower than that in Stokes L and V . For most pulsars, Stokes I also exhibits the lowest total white noise and the lowest jitter noise among the three Stokes parameters. However, for PSR J1713+0747, the jitter noise in Stokes L is approximately 5% smaller than that in Stokes I , and its total white noise is also slightly lower. This result suggests that forming times of arrival using other Stokes parameters—such as Stokes L —may help reduce jitter noise and improve timing precision for some pulsars. In addition, we detected quasiperiodic microstructure in PSRs J0030+0451 and J2145−0750.

Source: The Astrophysical Journal

DOI: 10.3847/1538-4357/ae5055

Authors: S. N. Sun, N. Wang, W. M. Yan

Institutions: Chinese Academy of Sciences, Xinjiang Astronomical Observatory

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $4,499

Funder: National Key Research and Development Program of China