Timeline for What are the odds of a rogue planet that enters into a galaxy reaching the black hole at the center of the galaxy?
Current License: CC BY-SA 4.0
13 events
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| May 31 at 13:08 | vote | accept | CommunityBot | ||
| Apr 1 at 12:19 | history | edited | user300400 | CC BY-SA 4.0 |
Removed unneeded words in the Body text.
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| Mar 31 at 13:16 | history | edited | user300400 | CC BY-SA 4.0 |
Edited the Body text to better clarify what I think would happen.
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| Mar 31 at 11:10 | comment | added | user300400 | @ProfRob, that the rogue planet reaches the event horizon of the black hole and is thus absorbed into it. | |
| Mar 31 at 7:24 | comment | added | ProfRob | What do you mean by "reach the black hole"? | |
| Mar 31 at 2:02 | history | edited | user300400 | CC BY-SA 4.0 |
Made a grammar change and adds a paragraph.
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| Mar 30 at 23:05 | history | became hot network question | |||
| Mar 30 at 18:21 | answer | added | KDP | timeline score: 5 | |
| Mar 30 at 16:54 | comment | added | Sten | Note that galactic halos are growing, so if the planet came in with a small enough excess energy, it would not have enough to escape again due to the deepening of the potential well in the meantime. Then the question becomes about the likelihood of an already-orbiting object sinking into the center (and over what time scale?) | |
| Mar 30 at 16:03 | comment | added | Kyle Kanos | On a Fermi estimate, I'd wager something like probability of a rogue planet existing times the probability of the rogue planet aimed at our galaxy (possibly conditioned on the orientation of the original galaxy?) times the ratio of the BH radius to the galactic radius. The latter term alone is $\sim10^{-9}$ so it's almost certainly extremely small. | |
| Mar 30 at 15:43 | comment | added | mmesser314 | I had similar questions in a different context. The links in my question might be of interest. How do rubble pile asteroids form? | |
| Mar 30 at 15:18 | comment | added | J.G. | I think the best hope would be a simulation of many rogues, but remember this consequence of gravity being time-symmetric: if one object isn't even orbiting a second, gravity won't capture it unless one of both transfers energy or kinetic or angular momentum with a third. | |
| Mar 30 at 15:05 | history | asked | user300400 | CC BY-SA 4.0 |