6 papers
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…
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…
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…
Neutron Star-White Dwarf Merger as One Possible Optional Source of Kilonova-like Emission: Implications for GRB 211211A
Xiao-Xuan Liu, Hou-Jun Lü, Qiu-Hong Chen +2
Long-duration GRB 211211A, which lacked an associated supernova at such a low redshift , but was associated with a possible kilonova emission, has attracted great attentio…
Kilonova Emission from Neutron Star Mergers with Different Equations of State
Wu-Zimo Qiumu, Meng-Hua Chen, Qiu-Hong Chen +1
Kilonova is an optical-infrared transient powered by the radioactive decay of heavy nuclei from binary neutron star mergers. Its observational characteristics depend on the mass an…
Neutron Star Mergers as the Dominant Contributor to the Production of Heavy -Process Elements
Meng-Hua Chen, Li-Xin Li, Qiu-Hong Chen +2
The discovery of the radioactively powered kilonova AT2017gfo, associated with the short-duration gamma-ray burst GRB 170817A and the gravitational wave source GW170817, has provid…