243 citations · 2.5k across the 84 of their papers we have counts for
84 papers
Super-earths and mini-neptunes follow different orbital period-eccentricity relations
Ke-Ting Shin, Dong-Sheng An, Ji-Wei Xie +2
Many exoplanets have been observed with radius sizes between that of Earth and that of Neptune and are thus classified into two groups: super-earths (SEs) and mini-neptunes (MNs).…
Constraints on the formation history and composition of Kepler planets from their distribution of orbital period ratios
Di-Chang Chen, Christoph Mordasini, Ji-Wei Xie +2
The Kepler high-precision planetary sample has revealed a radius valley, separating compact super-Earths from sub-Neptunes with lower density. Super-Earths are generally assumed to…
Mutual Occurrence Ratio of Planets. I. New Clues to Reveal Origins of Hot- and Warm-Jupiter from the RV Sample
Xiang-Ning Su, Hui Zhang, Ji-Lin Zhou
Many studies have analyzed planetary occurrence rates and their dependence on the host's properties to provide clues to planet formation, but few have focused on the mutual occurre…
Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium
Dongtao Cao, Shenghong Gu, Jian Ge +7
We present the results of time-resolved high-resolution spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star SZ Piscium (SZ Psc), obtained during two co…
Planets Across Space and Time (PAST). V. The evolution of hot Jupiters revealed by the age distribution of their host stars
Di-Chang Chen, Ji-Wei Xie, Ji-Lin Zhou +11
The unexpected discovery of hot Jupiters challenged the classical theory of planet formation inspired by our solar system. Until now, the origin and evolution of hot Jupiters are s…
Planets Across Space and Time (PAST) IV: The Occurrence and Architecture of Kepler Planetary Systems as a Function of Kinematic Age Revealed by the LAMOST-Gaia-Kepler Sample
Jia-Yi Yang, Di-Chang Chen, Ji-Wei Xie +7
One of the fundamental questions in astronomy is how planetary systems form and evolve. Measuring the planetary occurrence and architecture as a function of time directly addresses…