activity
20222026
most citedSystematic Reanalysis of KMTNet microlensing events, Paper I: Updates of the Photometry Pipeline and a New Planet Candidate

47 citations · 116 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.SR2026

Bernhard-1: An Eccentric Binary Periodically Obscured by its Misaligned Circumbinary Disk

Zhecheng Hu, Wei Zhu, Ping Chen +2

Bernhard-1 is a proposed KH 15D-like circumbinary disk occultation (CBO) system, but its binary nature and disk geometry have not previously been confirmed. We present new optical…

astro-ph.EP2026

Spin-Orbit Geometry of AU Mic b and c from Back-to-Back Transits Observed Contemporaneously with Magellan PFS, LCOGT, and CHEOPS

Zitao Lin, Gyula M. Szabó, Krzysztof Sz. Zieliński +37

Young planets offer a unique window into the early stages of planetary evolution. AU Mic is one of the nearest (9.8 pc) pre-main sequence stars (~20 Myr), hosting two transiting Ne…

astro-ph.EP2026★ 1 cited

Photochemical CS Gas Detected on a 20-Myr-old Exoplanet

Fei Dai, Erik Petigura, John Livingston +6

Probing the atmospheres of young exoplanets offers a powerful window into how planetary systems evolve and the physical and chemical processes that drive those early evolutions. We…

astro-ph.EP2026★ 1 cited

An Adolescent and Near-Resonant Planetary System Near the End of Photoevaporation

Mu-Tian Wang, Fei Dai, Hui-Gen Liu +28

Young exoplanets provide vital insights into the early dynamical and atmospheric evolution of planetary systems. Many multi-planet systems younger than 100 Myr exhibit mean-motion…

astro-ph.SR2026

Six New Circumbinary Disk Occultation (CBO) Candidates from the Zwicky Transient Facility

Zhecheng Hu, Wei Zhu, Shuming Wang +1

Circumbinary disk occultation (CBO) systems, in which a misaligned circumbinary disk periodically obscures the central binary, provide unique probes of disk structure and dynamics.…

astro-ph.EP2025

Unexpected Near-Resonant and Metastable States of Young Multi-Planet Systems

Zhecheng Hu, Fei Dai, Wei Zhu +4

Recent observations suggest that the incidence of near-resonant planets declines as planetary systems age, making young planetary systems key signposts of early dynamical evolution…

astro-ph.EP2025★ 38 cited

Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits

Weicheng Zang, Youn Kil Jung, Jennifer C. Yee +65

Exoplanets classified as super-Earths are commonly observed on short period orbits, close to their host stars, but their abundance on wider orbits is poorly constrained. Gravitatio…

astro-ph.EP2024★ 11 cited

Detecting Planetary Oblateness in the Era of JWST: A Case Study of Kepler-167e

Quanyi Liu, Wei Zhu, Yifan Zhou +5

Planets may be rotationally flattened, and their oblateness thus provide useful information on their formation and evolution. Here we develop a new algorithm that can compute the t…

astro-ph.SR2024

OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects

Zhecheng Hu, Wei Zhu, Andrew Gould +51

We present the analysis of the microlensing event OGLE-2015-BLG-0845, which was affected by both the microlensing parallax and xallarap effects. The former was detected via the sim…

astro-ph.EP2023★ 47 cited

Systematic Reanalysis of KMTNet microlensing events, Paper I: Updates of the Photometry Pipeline and a New Planet Candidate

Hongjing Yang, Jennifer C. Yee, Kyu-Ha Hwang +52

In this work, we update and develop algorithms for KMTNet tender-love care (TLC) photometry in order to create an new, mostly automated, TLC pipeline. We then start a project to sy…

astro-ph.IM2022★ 18 cited

ET White Paper: To Find the First Earth 2.0

Jian Ge, Hui Zhang, Weicheng Zang +163

We propose to develop a wide-field and ultra-high-precision photometric survey mission, temporarily named "Earth 2.0 (ET)". This mission is designed to measure, for the first time,…