John Carlos Baez on Nostr: I've been trying to watch serious science talks while I pedal away at the gym. Often ...
I've been trying to watch serious science talks while I pedal away at the gym. Often they are too boring for me to stick with them - the art of giving a good talk is not taught to professors. But the first 15 minutes of Sarah Millholland's talk "Tidal Sculpting of Short-Period Exoplanets" was really gripping, for me. Not because of flash and glitz: because of the substance.
After an overview, she focuses on how "hot Jupiters" form. They're probably born far from their sun, outside the 'frost line' where water freezes. So how do they move in closer? Maybe interactions with other planets or another star push them into a highly eccentric orbit. Then tides can make them lose energy and spiral closer to their star!
But these tides can work in several different ways....
(3/n, n = 3)
https://www.youtube.com/watch?v=f6axPWxtC1M
After an overview, she focuses on how "hot Jupiters" form. They're probably born far from their sun, outside the 'frost line' where water freezes. So how do they move in closer? Maybe interactions with other planets or another star push them into a highly eccentric orbit. Then tides can make them lose energy and spiral closer to their star!
But these tides can work in several different ways....
(3/n, n = 3)
https://www.youtube.com/watch?v=f6axPWxtC1M