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Xiaotian Xu/ T.D.Lee Postdoctoral Scholar
Astronomy and Astrophysics Division
S431 xtxuthomas.github.io
I am a theoretical astrophysicist with strong expertise in stellar astrophysics. I have a broad research interest, including (1) population of massive evolved binary stars (arxiv:2503.23876, 2503.23878); (2) gamma-ray bursts (arxiv: 2508.10551); (3) X-ray binaries (arxiv:1809.04269, 1804.07914); (4) accreting compact objects, black hole (arxiv: 2106.01395) and neutron star (arxiv: 1901.04707, 2509.21103). The current focus of my research is to understand the formation of gravitational-wave sources through the evolution of isolated massive binaries by using detailed binary evolution models (arXiv:2512.20054).

Educational Background

  • 2025- 2025, School of Astronomy and Space Science , No Degree
  • 2024- 2025, Argelander-Institut für Astronomie , No Degree
  • 2019- 2024, Argelander-Institut für Astronomie , Ph.D
  • 2016- 2019, School of Astronomy and Space Science , Master
  • 2012- 2016, School of Astronomy and Space Science , Bachelor

Work Experience

  • 2025-Now, Tsung-Dao Lee Institute, Postdoctoral research fellow

Research Interests

  • stellar structure and evolution
  • massive binary evolution
  • formation of gravitational-wave sources
  • gamma-ray bursts

Honorary Information

  • 2018, China national scholarship for graduate students
  • 2014, China national scholarship for undergraduate students

Representative Papers And Monographs

  • Xiao-Tian Xu, Norbert Langer, Jakub Klencki, Chen Wang, Xiang-Dong Li, "Stable mass transfer in massive binaries leading to merging black holes", (submitted), https://arxiv.org/abs/2512.20054
  • Xiao-Tian Xu, Bin-Bin Zhang, Yun-Lang Guo, and Xiang-Dong Li, 2025, ApJ, 994, 264: "Tracing the Physical Lineage of GRB 211211A: Population Constraints on NS–WD Merger Gamma-Ray Bursts" DOI 10.3847/1538-4357/ae1831, https://arxiv.org/abs/2508.10551
  • Shan-Shan Weng, Xiao-Tian Xu (corresponding author), Han-Long Peng, et al., Sci. China-Phys. Mech. Astron. 69: 229512 (2026): "A statistical study of type II outbursts of XRPs: Brighter accreting pulsars rotate faster", https://arxiv.org/abs/2509.21103
  • Xu, X.-T., Schürmann, C., Langer, N., et al., A&A, 704, A218: "Populations of evolved massive binary stars in the Small Magellanic Cloud I: Predictions from detailed binary evolution models", DOI: 10.1051/0004-6361/202554786, https://arxiv.org/abs/2503.23876
  • Schürmann, C., Xu, X.-T. (corresponding author), Langer, et al., A&A, 704, A219 (2025): "Populations of evolved massive binary stars in the Small Magellanic Cloud II: predictions from the rapid binary evolution code ComBinE", DOI: 10.1051/0004-6361/202554874, https://arxiv.org/abs/2503.23878
  • Kun Xu, Hao-Ran Yang, Ying-Han Mao, Xiao-Tian Xu (corresponding author), Xiang-Dong Li, Jifeng Liu, 2023, ApJ, 947,76: "Back to the Starting Point: on the Simulation of Initial Magnetic Fields and Spin Periods of Non-accretion Pulsars", DOI:10.3847/1538-4357/acc8ce, https://arxiv.org/abs/2304.03530
  • Sen, K., Xu, X.-T. (co-first author), Langer, N., et al., 2021, A&A, 652, A138: “X-ray emission from BH+O star binaries expected to descend from the observed galactic WR+O binaries”, DOI: 10.1051/0004-6361/202141214, https://arxiv.org/abs/2106.01395
  • Xu, Xiao-Tian, & Li, Xiang-Dong, 2019, ApJ, 872, 102: "On the Bimodal Spin Period Distribution of Be/X-ray Pulsars", DOI: 10.3847/1538-4357/aafee0, https://arxiv.org/abs/1901.04707
  • Xu, Xiao-Tian, & Li, Xiang-Dong, 2018, ApJ, 859, 46: "A Circumbinary Disk Model for the Rapid Orbital Shrinkage in Black Hole Low-mass X-Ray Binaries", DOI: 10.3847/1538-4357/aabe91, https://arxiv.org/abs/1804.07914
  • Xu, Xiao-Tian, & Li, Xiang-Dong, 2018, MNRAS, 480, 3856: "Are There Pre-Main-Sequence/Black Hole X-ray Binaries?", DOI: 10.1093/mnras/sty2146, https://arxiv.org/abs/1809.04269