Work

Quasi-periodic sub-structure of RRAT J1913+1330

Year: 2025

Type: article

Abstract: ABSTRACT Recent findings suggest a universal relationship between the quasi-periodic sub-structures and rotational periods across various types of radio-emitting neutron stars. In this study, we report the detection of 12 quasi-periodic sub-structures in a rotating radio transient (RRAT) J1913+1330 using the Five-hundred-metre Aperture Spherical Radio Telescope. This is the second known RRAT exhibiting quasi-periodic sub-structures. Our result reinforces the observed relationship between quasi-periodicity and rotational period. The polarization analysis reveals that 11 of the 12 pulses exhibit high linear polarization consistent with the quasi-periodic behaviour of the total intensity, while circular polarization with detectable quasi-periodic sub-structures is observed in only three pulses. No correlation is found between the sub-structure periods and their widths, peak fluxes, or fluences, even under the extremely variable single-pulse energy and morphology observed in J1913+1330.

Source: Monthly Notices of the Royal Astronomical Society

DOI: 10.1093/mnras/staf570

Authors: Zhenfan Tang, Songbo Zhang, Jieshuang Wang, Xuan Yang, Xuefeng Wu

Institutions: University of Science and Technology of China, Chinese Academy of Sciences, Purple Mountain Observatory, Max Planck Institute for Plasma Physics

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: $3,046