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20212026
most citedPlanets Across Space and Time (PAST). VI. Age Dependence of the Occurrence and Architecture of Ultra-Short-Period Planet Systems

10 citations · 10 across the 6 of their papers we have counts for

collaborators

10 papers

astro-ph.SR2026

Fates of the sub-stellar objects (FOSSO) II. Evidence for Suppression of Metal Pollution in White Dwarfs by Close Substellar Companions

Zhangliang Chen, Xin-Yue Zhang, Di-Chang Chen +4

Approximately 25--50\% of white dwarfs (WDs) exhibit metal absorption lines in their photospheres, interpreted as evidence of ongoing/recent accretion of planetary debris from remn…

astro-ph.EP2026

Chemical Abundances Shape History (CASH). I. A Link between Giant Planets Orbital Periods and Host Stellar C/O Ratios

Ruisheng Zhang, Ji-Wei Xie, Mengrui Pan +5

The chemical abundance of host stars plays a pivotal role in shaping the formation history of planetary systems, yet the influence of elements beyond iron remains poorly understood…

astro-ph.EP2026

How a Close-in Planet Protects its White Dwarf Host from Pollution

Xin-Yue Zhang, Ji-Wei Xie, Di-Chang Chen +1

Approximately 25-50% of white dwarfs (WDs) exhibit metal absorption lines in their photospheres, which are attributed to accretion from their remnant planetary systems. Although wh…

astro-ph.EP2025

Planets Across Space and Time (PAST). VIII : Kinematic Characterization and Identification of Radial Velocity Variables for the LAMOST-Gaia-TESS Stars

Di Wu, Di-Chang Chen, Ji-Wei Xie +6

The Transiting Exoplanet Survey Satellite (TESS) has discovered over 6700 nearby exoplanets candidates using the transit method through its all-sky survey. Characterizing the kinem…

astro-ph.EP2025

Planet Across Space and Time (PAST). VII. The origin and tidal evolution of hot Jupiters constrained by a broken age-frequency relation

Di-Chang Chen, Ji-Wei Xie, Ji-Lin Zhou +4

The discovery of hot Jupiters has challenged the classical planet formation theory. Although various formation mechanisms have been proposed, the dominant channel and relative cont…

astro-ph.EP2025

The New Generation Planetary Population Synthesis (NGPPS) VIII. Impact of host star metallicity on planet occurrence rates, orbital periods, eccentricities, and radius valley morphology

Di-Chang Chen, Christoph Mordasini, Alexandre Emsenhuber +3

The dust-to-gas ratio in the protoplanetary disk, which is likely imprinted into the host star metallicity, is a property that plays a crucial role during planet formation. We aim…