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astro-ph.HE2026
Impact of Decay-Chain Feeding by Long-Lived Heavy Nuclei on Nuclear Cosmochronology
Qiu-Hong Chen, Meng-Hua Chen, Xianlin Yang +1
Nuclear cosmochronology provides an independent method for determining the ages of astrophysical objects without relying on Galactic chemical evolution models. Long-lived radioacti…
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.HE2026
Novae breves from magnetar giant flares: Potential probes of neutron star crusts
Jiahang Zhong, Qiu-Hong Chen, Yacheng Kang +4
Matter ejected from the magnetar crust during giant flares (GFs) may undergo -process nucleosynthesis, producing short-lived optical transients termed "novae breves". Although i…