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> This intergalactic skyrocket is likely the result of multiple collisions of supermassive black holes. Astronomers suspect the first two galaxies merged perhap
by nirui 3y ago
> This intergalactic skyrocket is likely the result of multiple collisions of supermassive black holes. Astronomers suspect the first two galaxies merged perhaps 50 million years ago. That brought together two supermassive black holes at their centers. They whirled around each other as a binary black hole.
> Then another galaxy came along with its own supermassive black hole... One of the black holes robbed momentum from the other two black holes and got thrown out of the host galaxy.
I'm obviously not an expert, and this comment is obviously way off the topic, but allow me to wonder: If one supermassive black hole like the our Sagittarius A* can be that dominance, isn't this makes the black hole the most important "asset" of the galaxy? By that, I mean, if you somehow destroyed the back hole (which is what Kurzgesagt was trying to convince people to do, hehe), the galaxy will fall a part, assuming the bulge alone don't have enough gravity to hold the galaxy together.
If you let me expand this a little: So if there are advanced alien civilizations in our galaxy, maybe they want to take control of that black hole? Since that location is the only location unique in the entire galaxy.
If I can expand this a little further: As we human currently observed it, Sagittarius A* is currently quite stable (???) with no sign of disappearing. Can this suggest that in our galaxy there is not a single civilization advanced enough to (or want to) modify Sagittarius A* in a significant way, or maybe black hole just cannot be influenced easily even for a higher tier civilization (maybe wormhole is too hard too)?
I know I missed many details. It's just a shower thought first came out after I docked at a space station few light years away from Sagittarius A* in the game Elite Dangerous. Throwing the idea out there.
BTW: If someone is going to write a novel based on this, you need to pay for the idea up front :)
- hutzlibu 3y ago"Can this suggest that in our galaxy there is not a single civilization advanced enough to (or want to) modify Sagittarius A* in a significant way, or maybe black hole just cannot be influenced easily even for a higher tier civilization" It is also possible, that they don't want to modify the black hole, because it is working as intended? Why would we change the sun, even if we could? But apart from that, yes, a civilisation would need to bery very, very advanced to significantly alter a black hole, like the one at the center of our galaxy.
- tehforsch 3y agoNot an expert either but Sagittarius A* has a mass of 10^6 solar masses, the Milky Way itself has a mass of approximately 10^12 solar masses. So I doubt that Sagittarius A* is even relevant in terms of the Milky Ways gravitational potential. That said, the existence of Sagittarius A* does (most likely, this is an area of debate) have an impact on the Milky Way due to the strong, high-frequency radiation from its accretion disk, which affects the gas surrounding the central region of the galaxy. Still, this is probably not an incentive for anyone to destroy the black hole (if that were technologically possible). In addition, keep in mind that any galactic-scale effects take on the order of millions of years to take place. (With supernovas or other super high energy events being an exception) So my intuition is your novel would need to ignore a few physical facts, but its fiction after all :D
- nirui 3y agoThanks for pointing out the flaws, obviously I need quite many read ups to do in order to produce something remotely correct in my shower times LOL.