演講資訊

摘要：

In this talk, the Twinkle Space Mission, a space-based observatory which will carry a 0.45 m telescope with a visible and infrared spectrograph and has been conceived to measure the atmospheric composition of exoplanets, stars and solar system objects, will be introduced. The spacecraft will be launched into a Sun-synchronous low-Earth polar orbit and will operate in this highly stable thermal environment for a baseline lifetime of seven years.

Twinkle will have the capability to provide high-quality infrared spectroscopic characterization of the atmospheres of hundreds of bright exoplanets, covering a wide range of planetary types. It will also be capable of providing phase curves for hot, short-period planets around bright stars targets and of providing ultra-precise photometric light curves to accurately constrain orbital parameters, including ephemerides and transit timing/duration variations present in multi-planet systems.

After reviewing some of our recent published results on exoplanet transits, the current status and progress of Twinkle Project will be described. Our group's role in this international project will be discussed.