Guardsman Bass wrote:
It is when you consider the limitations of our means of finding them. Even Kepler can only spot planets if they make a transit in front of their stars in star systems that are "edge-on" in terms of visibility. That closes off most star systems, and the rest are heavily biased towards having super-close-in planets where confirming the transits is easiest.
Just look at the Alpha Centauri planet. It was lucky that we even found it, since usually the two stars are so bright that they swamp out any light reflected off of the planet they found.
But you just repeated my point - yes, small planets are hard to spot. That doesn't change the fact that big planets are easy to spot, and we never saw any Hot Jupiters in closest systems, yes, we saw a lot of them but scattered all over so they can't be called common.
Yes it is, especially considering that the actual number of planet candidates detected by Kepler is "only" in the 2000-ish range. 1 out of 4 planets being a hot (or not hot but inner-orbit) gas giant? That's a really high ratio actually...considering in our own solar system the ratio is 0 to 8.
1 out of 4 planets being hot giant when they are hundreds to thousands of times easier to spot shows the ratio is low, actually, and will only drop as our detection methods will improve.
Orbital resonances can do a tremendous amount of work.
Again, work doesn't come from nowhere.
Do read it, Jupiter moved the other 3, being much more massive. You want to move Jupiter? Congratulations, you need something far more massive to impart energy to destabilize it away from Sun's gravity well.
The link you posted replaces my work assumption of single massive planet with millions of planetesimals, precisely to explain point you failed to address: that something must pay
for moving Jupiter away from Sun, orbital resonance isn't magical free energy generator.
Think about it for a second, you think the resonance stopped? Nope. Then why the giant planets don't move? Because there is no more easy energy
to be tapped to move them, unlike what you posted. That's why also all the hot Jupiters stayed in place - no magical energy to be tapped, planet can't move.