3 papers
astro-ph.HE2026
MeV Gamma-Ray Lines from Radioactive Nuclei in Magnetar Giant Flares
Wu-Zimo Qiumu, Meng-Hua Chen, Qiu-Hong Chen +4
The rapid neutron-capture process (r-process) is widely regarded as the dominant mechanism responsible for the synthesis of heavy elements in the universe, yet its astrophysical si…
astro-ph.HE2025
GRB 240825A: Early Reverse Shock and Its Physical Implications
Chao Wu, Yun Wang, Hua-Li Li +84
Early multiwavelength observations offer crucial insights into the nature of the relativistic jets responsible for gamma-ray bursts and their interaction with the surrounding mediu…
astro-ph.HE2025
GRB 170519A: Thermal Radiation in an X-ray Flare and Decaying Magnetic Fields for the Early-Time Afterglow
Zi-Min Zhou, Liang-Jun Chen, Rui-Quan Li +5
GRB 170519A was discovered by \emph{Swift}/BAT, and then observed by \emph{Swift}/XRT, \emph{Swift}/UVOT, and ground-based telescopes. We report Lick/KAIT observations of GRB 17051…