9 papers
Relativistic effects of PSR~J1856--0039 double neutron star system in a 2.36-hour compact orbit
Z. L. Yang, J. L. Han, W. Q. Su +11
The paper reports the discovery and detailed relativistic measurements of the compact double neutron star system PSR J1856–0039, which has a 2.36‑hour orbit and the lowest total ma…
FAST Pulsar Database III. Snapshots of nulling, mode-changing and subpulse modulation of 374 pulsars
Yi Yan, J. L. Han, J. Xu +8
Based on sensitive L-band (1.0 to 1.5 GHz) observations of pulsars using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we analyzed single-pulse sequences from F…
FAST Pulsar Database: II. Scattering profiles of 149 Pulsars
W. C. Jing, J. L. Han, C. Wang +10
The turbulent ionized interstellar medium diffracts radio waves and makes them propagate in multiple paths. The pulse-broadening observed at low frequencies results from the scatte…
The FAST Galactic Plane Pulsar Snapshot Survey. IX. Timing Three Binary Pulsars with Wide Orbits and Low Orbital Eccentricities
Z. L. Yang, J. L. Han, W. Q. Su +11
Current pulsar timing models face challenges when applied to binary pulsars with wide orbits and low orbital eccentricities. The conventional \texttt{DD} model accurately character…
Mass measurements of the double neutron star system PSR J0641+0448
Z. L. Yang, J. L. Han, P. F. Wang +8
Pulsar timing of double neutron star (DNS) systems is one of the best methodologies to study the neutron star masses distribution. Here we report the discovery of a double neutron…
Bright bursts with sub-millisecond structures of FRB 20230607A in a highly magnetized environment
DeJiang Zhou, J. L. Han, Bing Zhang +19
We report the observations of a repeating FRB 20230607A for 15.6 hours spanning 16 months using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) with the detection…