After some technical issued, we‘re back with Ryan MacDonald about the first #JWST spectrum of a white dwarf exoplanet.

I remember Ryan giving a talk with this title already at #ExSSV in NZ.

When our sun will die one day, Jupiter and Saturn may actually survive this catastrophic event. Sooo this is also something that could/should happen in other systems. Funnily only in recent years we started finding these left over planets around white dwarfs. #exoplanets5

The target of the talk is WD 1856 b with an insanely large transit depth! We honestly still struggle a bit with the key params of this planet. Mostly we don‘t really know its mass.

But it experienced a violent past through common envelope formation or high eccentricity migration. These two scenarios are not distinguishable but #JWST will/should tell us. Ryan asked not to share these results so stay tuned!! #exoplanets5 🫶