Hai-Jun Tian · Academic Homepage

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Professor at Hangzhou Dianzi University · Born in Xiangyang, Hubei Province, China.

Research Interests

Stellar kinematics, binary and multiple star systems (with a focus on Wide Binaries , and the “Stellar Snake”), Galactic structure and evolution, spectroscopic visualization and analysis (SpecZoo), and other astronomical big-data related science and technology.

Education

2007.09 – 2010.12 Central China Normal University — Ph.D. in Radio Physics & Astronomical Informatics
2008.09 – 2009.11 Johns Hopkins University (USA) — Joint Ph.D. training (Prof. Alexander Szalay)

2007.10 – 2007.11 IUCAA (India) — Visiting student (Prof. Ajit Kembhavi)

2007.08 – 2008.09, 2009.12 – 2010.07 National Astronomical Observatories, CAS
2004.09 – 2007.07 Central China Normal University — M.Sc. in Theoretical Physics
2005.08 – 2007.09 National Astronomical Observatories, CAS (Beijing)
2000.09 – 2004.07 Central China Normal University — B.Sc.

Work Experience

2023.02 – present Hangzhou Dianzi University — Professor
2026.04 – 2027.04 University of Cambridge (UK) — Visiting Scholar (Prof. Vasily Belokurov)
2022.07 – 2023.02 China Three Gorges University — Deputy Dean, Institute of Science & Technology Development
2019.11 – 2023.02 China Three Gorges University — Professor
2017.11 – 2022.07 China Three Gorges University — Associate Dean, College of Science
2011.05 – 2019.11 China Three Gorges University — Lecturer & Associate Professor
2016.01 – 2017.01 & 2018.06 – 2018.09 Max Planck Institute for Astronomy (MPIA), Germany — Visiting Scholar (Prof. Hans-Walter Rix)
2012.01 – 2015.03 National Astronomical Observatories, CAS — LAMOST Postdoctoral Fellow

Selected Publications

Tao, Yixi; Tian, Hai-Jun*; Yue, Bin; Peñarrubia, Jorge “Constraining dark matter density profiles in UFDs with wide binaries: forecast for the Chinese Space Station Survey Telescope” MNRAS, 2026
Li, Jia-Peng; Tian, Hai-Jun*; Wang, Chen; Yang, Xiang-Ming; Wang, Fan “The Stellar 'Snake'. III. Coevolution of Stars and Molecular Clouds Unveiled by Gaia, MWISP, and LAMOST” ApJS, 2026
Xie, Cheng-Cheng; Tian, Hai-Jun*; Shi, Jian-Rong; Zhou, Ze-Ming “Lithium in Wide Binaries: Effective Temperature Governs Depletion while Rotation Plays a Minor Role” arXiv, 2026
Zhang, Yun-Yi; Tian, Hai-Jun*; Shi, Jian-Rong; Xie, Cheng-Cheng; Yang, Xiang-Ming “Emergence of a Lithium Dip in ~35 Myr 'Snake' Open Clusters” ApJ, 2026
Pu, Yuanhao; Lei, Guohong; Xu, Yang; Chen, Xunzhou; Tian, Hai-Jun* “SpecZoo: An AI-Powered Platform for Spectral Analysis and Visualization in Science and Education” Universe, 2026
Qiu, Gao, Tian, et al. “Wide binary evaporation by dark solitons: implications from the GAIA catalog” JCAP, 2025
Wang, Li*, Zhang, Wu*, Tian*, et al. “Design and implementation of a scalable correlator based on ROACH2 + GPU cluster for tianlai 96-dual-polarization antenna array” Frontiers in Astronomy and Space Sciences, 2024
Yang Xiang-Ming, Bird Sarah A., Li Jiadong, Tian Hai-Jun* et al. “The Stellar Snake - II: The Mass Function” MNRAS, 2024
Lin Jun, Guo Rui*, Bird Sarah*, Tian Haijun* et al. “North-South asymmetries in the Galactic thin disc associated with the vertical phase spiral as seen using LAMOST-Gaia stars” MNRAS, 2024
Chen, Tian*, et al. “Discovery of two rotational modulation periods from a young hierarchical triple system” SCPMA, 2023
Wang, Tian*, et al. “The Stellar 'Snake' - I. Whole Structure and Properties” MNRAS, 2022
Qiu, Tian*, et al. “Precise Ages of Field Stars from White Dwarf Companions in Gaia DR2” ApJS, 2021
Tian*, 2020 “Discovery of a Young Stellar Snake with Two Dissolving Cores in the Solar Neighborhood” ApJ, 2020
Tian* et al. “The Separation Distribution of Ultra-Wide Binaries across Galactic Populations” ApJS, 2020
Tian* et al. “The Extended Gaia-PS1-SDSS (GPS1+) Proper Motion Catalog” ApJS, 2020
El-Badry, Rix, Tian, et al. “Discovery of an equal-mass 'twin' binary population reaching 1000+ AU separations” MNRAS, 2019
Tian* et al. “Time Stamps of Vertical Phase Mixing in the Galactic Disk from LAMOST/Gaia Stars” ApJL, 2018
Tian* et al. “A Gaia-PS1-SDSS (GPS1) Proper Motion Catalog Covering 3/4 of the Sky” ApJS, 2017
Tian et al. “Peculiar in-plane velocities in the outer disc of the Milky Way” RAA, 2017
Tian* et al. “The Stellar Kinematics in the Solar Neighborhood from LAMOST Data” ApJ, 2015
Tian* et al. “Exploring the total Galactic extinction with SDSS BHB stars” A&A, 2014
Tian* et al. “Redshift-space Enhancement of Line-of-sight BAOs in the SDSS Main-galaxy Sample” ApJ, 2011

Full publication list via ADS Library.