Anders Johansen 🪨🌍🇺🇦
@astroandersj.bsky.social
Theoretical astrophysicist, with expertise in planet formation. Head of Planet Formation Group at University of Copenhagen / Lund University. Opinions my own.
https://sites.google.com/view/planet-formation-group/group-members
https://sites.google.com/view/planet-formation-group/group-members
So the radius gap may be primordial and photoevaporation, in our view, plays mainly a role of actually filling in the gap region with planets completely or partially stripped of their gas envelope.
February 25, 2025 at 3:24 PM
So the radius gap may be primordial and photoevaporation, in our view, plays mainly a role of actually filling in the gap region with planets completely or partially stripped of their gas envelope.
This gives these nice 'crocodile' plots where the radius gap is clearly visible out to 0.5 astronomical units (AU) or so.
February 25, 2025 at 3:24 PM
This gives these nice 'crocodile' plots where the radius gap is clearly visible out to 0.5 astronomical units (AU) or so.
The radius valley describes the lack of planets with radii around 1.5-2 times Earth's radius. Here a famous plot of the radius gap from Fulton et al. (2017).
February 25, 2025 at 3:24 PM
The radius valley describes the lack of planets with radii around 1.5-2 times Earth's radius. Here a famous plot of the radius gap from Fulton et al. (2017).
A great community note from that other site.
October 6, 2023 at 3:38 PM
A great community note from that other site.