11 citations · 17 across the 10 of their papers we have counts for
12 papers
The Milky Way's Early Disk Was Built in Bursts. II. The Multi-component Age-Metallicity Structure of the High- Disk
Tiancheng Sun, Maosheng Xiang, Jifeng Liu +2
Whether the high- disk experienced a continuous or episodic star-formation history remains an open question. Here we investigate the age--metallicity distribution of the high-$α…
A chemo-dynamical search for planet-candidate hosts of possible extragalactic origin
Sun Tiancheng, Chen Xunzhou, Xiang Maosheng +2
To date, all known exoplanetary systems have been identified around stars currently residing in the Milky Way, whereas planets formed in external galaxies remain largely unexplored…
Host--Non-host Differences in Stellar Chemistry, Activity, and Birth Radius: Hints of Distinct Formation Environments for Earth-like Planets and Sub-Neptunes
Xunzhou Chen, Tiancheng Sun, Yuxi +3
Host-star properties provide important clues to planet formation and evolution, yet it remains unclear whether the observed differences between planet-hosting stars and stars witho…
Insights into the Exoplanet Radius Valley from Host-Star Ages, Activity, Chemistry, and Birth Radius
Xunzhou Chen, Tiancheng Sun, Yuxi +3
The radius valley, a bimodal feature in the size distribution of close-in small exoplanets, is widely interpreted as a signature of atmospheric loss and therefore provides a key co…
Insights into Planet Formation from the Ages, Masses, and Elemental Abundances of Host Stars
Xunzhou Chen, Tiancheng Sun, Lifei Ye
How planetary systems form and evolve is a key question in astronomy. Revealing how host star properties, such as elemental abundances, age, and mass, differ from those of non-host…
The temporal and spatial variations of lithium abundance in the Galactic disc
Tiancheng Sun, Shaolan Bi, Xunzhou Chen +7
This study investigates the temporal and spatial variations in lithium abundance within the Milky Way using a sample of 22,034 main-sequence turn-off (MSTO) stars and subgiants, ch…
Relations of rotation and chromospheric activity to stellar age for FGK dwarfs from Kepler and LAMOST
Lifei Ye, Shaolan Bi, Jinghua Zhang +9
The empirical relations between rotation period, chromospheric activity, and age can be used to estimate stellar age. To calibrate these relations, we present a catalog, including…
Detection of Solar-like Oscillations in Sub-giant and Red Giant Stars Using 2-minute Cadence TESS Data
Jianzhao Zhou, Shaolan Bi, Jie Yu +7
Based on all 2-minute cadence light curves from Sector 1 to 60, we provide a catalog of 8,651 solar-like oscillators, including frequency at maximum power (, wi…
Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars
Tiancheng Sun, Shaolan Bi, Xunzhou Chen +11
The Milky Way underwent significant transformations in its early history, characterised by violent mergers and satellite galaxy accretion. However, recent observations reveal notab…
Investigating 16 Open Clusters in the Kepler/K2-Gaia DR3 field. I. Membership, Binary, and Rotation
Liu Long, Shanlao Bi, Jinhua Zhang +9
Using data from the Gaia Data Release 3 (Gaia DR3) and Kepler/K2, we present a catalog of 16 open clusters with ages ranging from 4 to 4000 Myr, which provides detailed information…
Age of FGK Dwarfs Observed with LAMOST and GALAH: Considering the Oxygen Enhancement
Tiancheng Sun, Zhishuai Ge, Xunzhou Chen +11
Varying oxygen abundance could impact the modeling-inferred ages. This work aims to estimate the ages of dwarfs considering observed oxygen abundance. To characterize 67,503 LAMOST…
Characterising abundance-age relations of GALAH stars using oxygen-enhanced stellar models
Tiancheng Sun, Xunzhou Chen, Shaolan Bi +3
Main Sequence Turn-off stars (MSTO) and subgiant stars are good tracers of galactic populations. We present a study of 41,034 MSTO and subgiant stars from the GALAH survey. Using a…