25 citations · 40 across the 9 of their papers we have counts for
11 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…
A Radio Changing-state Jet in the Narrow-line Seyfert 1 Galaxy J1105+1452
Liming Dou, Zhining Chen, Jiahua Wu +9
We report the discovery of a radio-quiet to radio-loud transition in the narrow-line Seyfert 1 galaxy J1105+1452. The source has undergone a long-term evolution from a radio-quiet…
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…
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…
Radioactive Gamma-Ray Lines from Long-lived Neutron Star Merger Remnants
Meng-Hua Chen, Li-Xin Li, En-Wei Liang
The observation of a kilonova AT2017gfo associated with the gravitational wave event GW170817 provides the first strong evidence that neutron star mergers are dominant contributors…
Ejecta-circumstellar medium interaction in high-density environment contribution to kilonova emission: Application to GRB 191019A
Suo-Ning Wang, Hou-Jun Lü, Yong Yuan +4
The nearby long-duration GRB 191019A recently detected by Swift lacks an associated supernova and belongs to a host galaxy with little star formation activity, suggesting that the…
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…
Radioactive Decay of Specific Heavy Elements as an Energy Source for Late-Time Kilonovae and Potential JWST Observations
Meng-Hua Chen, En-Wei Liang
Revealing the temporal evolution of individual heavy elements synthesized in the merger ejecta from binary neutron star mergers not only improves our understanding of the origin of…
Radioactively-Powered Gamma-Ray Transient Associated with a Kilonova from Neutron Star Merger
Meng-Hua Chen, Rui-Chong Hu, En-Wei Liang
AAssociation of GW170817/GRB170817A/AT2017gfo provides the first direct evidence for neutron star mergers as significant sources of -process nucleosynthesis. A gamma-ray transie…
Gamma-Ray Emission Produced by -process Elements from Neutron Star Mergers
Meng-Hua Chen, Li-Xin Li, Da-Bin Lin +1
The observation of a radioactively powered kilonova AT~2017gfo associated with the gravitational wave-event GW170817 from binary neutron star merger proves that these events are id…