3 papers
astro-ph.HE2026
Testing the Isotropy of the Universe with the CHIME/FRB Catalog I
Jun-Yi Shen, Yuan-Chuan Zou
We test the isotropy of the Universe using 536 Fast Radio Bursts (FRBs) from the first CHIME/FRB catalog, employing two complementary statistical methods: the two-point angular cor…
astro-ph.HE2025
Revisiting the Reported Period of FRB 20201124A Using MCMC Methods
Jun-Yi Shen, Yuan-Chuan Zou
Fast radio bursts (FRBs) are millisecond-duration radio transients whose physical origin remains uncertain. Magnetar-based models, motivated by observed properties such as polariza…
astro-ph.HE2024
Measuring the curvature of the universe based on the dust-scattering ring of GRB 221009A
Jun-Yi Shen, Yuan-Chuan Zou
We investigate the use of dust-scattering rings from GRB 221009A to measure cosmic curvature. We derive the relationship between scattering angle and time delay in non-flat univers…