Interstellar Interlopers, Coming in from the great beyond |
Interstellar Interlopers, Coming in from the great beyond |
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#1
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Member ![]() ![]() ![]() Group: Members Posts: 541 Joined: 17-November 05 From: Oklahoma Member No.: 557 ![]() |
They finally found a chunk of something coming into the Solar System. Something much bigger than cosmic rays or dust particles.
Asteroid/comet in hyperbolic trajectory |
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#2
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1444 Joined: 26-July 08 Member No.: 4270 ![]() |
With as deep in their star's gravitational wells as they are, it would be quite a feat for a hot Jupiter to kick an asteroid out of its planetary system that wasn't already on a highly eccentric orbit.
-------------------- -- Hungry4info (Sirius_Alpha)
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#3
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![]() Member ![]() ![]() ![]() Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 ![]() |
With as deep in their star's gravitational wells as they are, it would be quite a feat for a hot Jupiter to kick an asteroid out of its planetary system that wasn't already on a highly eccentric orbit. Well, I think the idea is a Nice model, gas giant forms at the snowline, then makes it's way to the inner orbit by gas drag, or by dumping excess angular momentum by scattering asteroids or comets. It's counter-intuitive, gas giants don't have retro-rockets to slow them down and spiral in, so their method of braking is tossing asteroids around. -edit- It's sort of a solar system version of the gravel run-outs you have for trucks that loose their brakes - tossing small rocks around is a way to scrub off speed. |
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