4 papers
Surface brightness-color relations for red giant branch stars: Observational constraints on metallicity effects using the ARD method
Jianping Xiong, Xiaodian Chen, Jiao Li +5
Aims: We aim to quantify the metallicity dependence of the SBCR for red giant branch (RGB) stars and to test the robustness of the relation using asteroseismic radii, Gaia distance…
Surface brightness-color relations for red giant branch stars using asteroseismic radii and Gaia distances (the ARD method)
Jianping Xiong, Qiyuan Cheng, Xiaodian Chen +4
Aims. Asteroseismic radius and Gaia distance (ARD) method has been proposed to establish the SBCRs for late-type stars. Methods. We select Kepler RGB stars with high-precision aste…
Discoveries and Properties of EL CVn-type Binaries in the TESS Survey
Jianping Xiong, Zhenwei Li, Jiao Li +5
EL CVn-type systems represent a rare evolutionary stage in binary star evolution, providing ideal laboratories for investigating stable mass transfer processes and the formation of…
Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST
Tongyu He, Jiao Li, Jiangdan Li +8
Triple star systems are critical for understanding stellar dynamics and compact objects in astrophysics, yet confirmed hierarchical triples identified via spectroscopy remain limit…