8 papers
KIC 6464285: A Solar-type Eclipsing Binary in a Hierarchical Triple System with Quasi-periodic Out-of-eclipse Modulations
Fang-Bin Meng, Li-Ying Zhu, Sheng-Bang Qian +10
We present the first detailed analysis of the solar-type triple system KIC 6464285. Combining long-term, high-precision photometry from Kepler, TESS, and ZTF with low-resolution sp…
SZ Lyncis: A Non-Accreting Neutron Star-delta Scuti Binary Candidate Discovered via Dynamics and Asteroseismology
Ping Li, Li-Ying Zhu, Wen-Ping Liao
Neutron stars (NSs) are traditionally discovered through radio, X-ray, or gamma-ray observations, but optical time-domain surveys can unveil non-accreting NSs in wide binaries. Her…
Tidally Trapped Two-pole Pulsations Discovered in a Close Binary with a Massive Cephei Star
Ping Li, Wen-Ping Liao, Sheng-Bang Qian +4
Tidally tilted pulsators (TTPs), whose pulsation axis aligns with the binary's semi-major axis, represent a newly established class of oscillators in binary systems. While all prev…
Asteroseismology and Dynamics Reveal Interior Structure and Coeval Evolution in the Triply Post-Main-Sequence system DG Leo
Ping Li, Wen-Ping Liao, Sheng-Bang Qian +4
Scuti stars in binary or multiple systems serve as crucial probes for studying stellar pulsation and evolution. However, many such systems are not ideal for asteroseismology d…
Orbital and Pulsation Analysis of 42 Heartbeat Stars Discovered in TESS Data
Min-Yu Li, Sheng-Bang Qian, Ai-Ying Zhou +7
Heartbeat stars (HBSs) are ideal laboratories for studying the formation and evolution of binary stars in eccentric orbits and their mutual tidal interactions. We present 42 new HB…
Heartbeat Stars Recognition Based on Recurrent Neural Networks: Method and Validation
Min-Yu Li, Sheng-Bang Qian, Li-Ying Zhu +7
Since the variety of their light curve morphologies, the vast majority of the known heartbeat stars (HBSs) have been discovered by manual inspection. Machine learning, which has al…