High-resolution spectroscopy of ultra-hot Jupiter’s atmosphere

by Prof. Fei Yan (University of Science and Technology of China)

Monday 21 Aug 2023, 10:00 → 11:00 Asia/Shanghai

TDLI Meeting Room N600 (East Wing of Floor 6, North Building)

Abstract

Ultra-hot Jupiter is a class of giant exoplanets with extremely high temperatures. Due to their unique chemical and physical properties, this class of exoplanet have become a popular research subject in recent years. In this talk, I will present our observed results of ultra-hot Jupiters using both transmission and emission spectroscopy. We conducted a survey of a dozen ultra-hot Jupiters using ground-based high-resolution spectrographs, including CRIRES+, CARMENES, HARPS-N, and discovered various chemical species such as H, Ca, Fe, CO, and OH. Furthermore, we have observed their thermal emission spectra and found that temperature inversion layers are common on their dayside hemispheres.

Biography

Fei Yan is a Professor at the Department of Astronomy, University of Science and Technology of China. He obtained his Ph.D from the National Astronomical Observatory of Chinese Academy of Science in 2015. He has conducted researches at the European Southern Observatory, the Max Planck Institute for Astronomy, and the University of Göttingen. In July 2022, he joined the Department of Astronomy at the University of Science and Technology of China. His main research focuses on observation of exoplanet atmospheres with high-resolution spectrographs.

Chair

Xianyu Tan

Division

Astronomy and Astrophysics

Other information

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Meeting ID: 320590108