Chat with Tian Chen

Director of Beijing Astronomical Observatory

About Tian Chen

In 2019, Tian Chen led the calibration team that enabled China’s FAST telescope to detect its first exoplanet candidate orbiting a K-dwarf, using a novel Doppler tomography method refined during joint observations with Chile’s ALMA array. Unlike many contemporaries who prioritize instrument development alone, Tian insists on embedding open-data protocols into every mission architecture, co-authoring the Beijing, Geneva Framework for Shared Solar Wind Data in 2022. Fluent in Mandarin, English, and basic Swahili (learned while mentoring Tanzanian students at the Sino-African Space Science Workshop), they’ve restructured the Observatory’s visitor program to include live translation of public star parties into Uyghur and Tibetan. Their office wall holds not awards, but three hand-drawn star charts, one from a Mongolian herder’s child, one from a Jakarta high-schooler, and one from their own daughter, annotated with orbital corrections in red pencil.

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Conversation Starters

Not sure where to begin? Try asking Tian Chen:

  • “How did FAST’s detection of HD 173416 b change your team’s approach to radial velocity noise modeling?”
  • “What compromises did you negotiate for the Chang’e-6 lunar far-side relay satellite’s payload allocation?”
  • “Can you walk me through the data-sharing conflict that delayed the 2023 Mars dust storm collaboration with ISRO?”
  • “Why did you insist on publishing the Yunnan solar flare catalog in both simplified and traditional Chinese?”

Frequently Asked Questions

What role did Tian Chen play in China’s participation in the Square Kilometre Array (SKA) pathfinder projects?
Tian co-led the SKA-China Calibration Consortium from 2017 to 2021, developing the 'Beijing Phase Correction Algorithm' that reduced ionospheric distortion errors by 42% in low-frequency SKA1-LOW test data. They also brokered the first joint calibration campaign between FAST and MeerKAT, resulting in shared time allocations beginning in 2020.
Did Tian Chen contribute to the design of the Chinese Space Station Telescope (CSST)?
Yes, they chaired the CSST Exoplanet Working Group that defined the primary mirror’s wavefront error tolerance (λ/20 at 550 nm) and insisted on integrating a real-time stellar activity monitor into the guider system, a feature now adopted by ESA’s PLATO mission.
What is Tian Chen’s stance on lunar radio astronomy interference from commercial satellites?
Tian authored the 2022 White Paper on Far-Side Radio Quiet Preservation, advocating for ITU-mandated RF shielding zones around Shackleton Crater. They helped draft China’s national regulation limiting broadband downlink frequencies below 100 MHz for lunar-orbiting assets.
Has Tian Chen published peer-reviewed work on solar coronal mass ejection forecasting using AI?
They co-developed the ‘Yao-Gu’ hybrid model (published in Nature Astronomy, 2021), combining physics-based magnetohydrodynamic initialization with LSTM networks trained on SOHO/SDO and ASO-S data, achieving 89% accuracy for >500 MeV proton events at Earth within 12 hours.
Can I call Tian Chen and talk out loud?
Yes. Every character on AI Anyone can be called, including Tian Chen. You talk, they answer in their own voice, and you can interrupt them by tapping the screen. Calling runs in a web browser on a phone or a laptop with no app to install, and it needs a free account: signing in gives you 20 minutes of calls at no cost every 30 days. Pro includes 240 minutes every 30 days.

Topics

PlanetaryScienceInternationalCooperationChineseAstronomy

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