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The Twinkle Space Mission: an update on the global extrasolar survey

Presentation #102.369 in the session Poster Session.

Published onJun 20, 2022
The Twinkle Space Mission: an update on the global extrasolar survey

The Twinkle Space Mission is a space-based observatory that has been conceived to measure the atmospheric composition of exoplanets, stars and solar system objects. The satellite is based on a high-heritage platform and will carry a 0.45 m telescope with a visible and infrared spectrograph providing simultaneous wavelength coverage from 0.5–4.5 μm. 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 characterisation of the atmospheres several hundred 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 TTVs/TDVs present in multi-planet systems.

Researchers around the globe can join Twinkle in two ways:

1) joining its collaborative multi-year survey programme, which will observe hundreds of extrasolar and solar system objects; and

2) accessing dedicated telescope time on the spacecraft, which they can schedule for any combination of science cases.

I will present an overview of Twinkle’s capabilities and discuss some example exoplanet surveys to highlight the broad range of targets the mission could observe, demonstrating the huge scientific potential of the spacecraft.

Furthermore, I will highlight the work of Twinkle’s Extrasolar Survey Science Team, showcasing their science interests and the studies into Twinkle’s capabilities that they have conducted since joining the mission.

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