Timeline for Could an ejected "extra ice-giant" still be lurking in distant solar orbit?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 24, 2015 at 5:14 | history | tweeted | twitter.com/#!/StackAstronomy/status/624447485063340032 | ||
| Jul 22, 2015 at 18:04 | comment | added | zibadawa timmy | In the early stages of planetary formation the disk is dense enough to act rather like a viscous fluid. There's a resulting drag on planets/planetesimals, which can cause them to fall inwards. That was the basic idea behind the Grand Tack hypothesis. Without other planets to resonant with and bump it back out, it could end up stuck in the inner system. It just needs to accrete enough material in time. I don't know how well, if at all, that idea could really explain Hot Jupiters, but maybe it's a possibility? | |
| Jul 22, 2015 at 1:42 | answer | added | userLTK | timeline score: 5 | |
| Jul 20, 2015 at 23:06 | history | asked | LocalFluff | CC BY-SA 3.0 |