by BeAChooser » Tue Jul 23, 2024 3:32 am
https://phys.org/news/2024-07-astrophys ... edark.html
Researchers have found a link between some of the largest and smallest objects in the cosmos: supermassive black holes and dark matter particles.
Their new calculations reveal that pairs of supermassive black holes (SMBHs) can merge into a single larger black hole because of previously overlooked behavior of dark matter particles, proposing a solution to the longstanding "final parsec problem" in astronomy.
So using a still unverified GNOME, they've fixed a major problem they had in their black hole theory? LOL!
In 2023, astrophysicists announced the detection of a "hum" of gravitational waves permeating the universe. They hypothesized that this background signal emanated from millions of merging pairs of SMBHs each billions of times more massive than our sun.
However, theoretical simulations showed that as pairs of these mammoth celestial objects spiral closer together, their approach stalls when they are roughly a parsec apart—a distance of about three light years—thereby preventing a merger.
Not only did this "final parsec problem" conflict with the theory that merging SMBHs were the source of the gravitational wave background, it was also at odds with the theory that SMBHs grow from the merger of less massive black holes.
In other words, a BIG problem.
Previous merger models showed that when the SMBHs approached to within roughly a parsec, they begin to interact with the dark matter cloud or halo in which they are embedded. They indicated that the gravity of the spiraling SMBHs throws dark matter particles clear of the system and the resulting sparsity of dark matter means that energy is not drawn from the pair and their mutual orbits no longer shrink.
While those models dismissed the impact of dark matter on the SMBH's orbits, the new model from Alonso-Álvarez and his colleagues reveals that dark matter particles interact with each other in such a way that they are not dispersed. The density of the dark matter halo remains high enough that interactions between the particles and the SMBHs continue to degrade the SMBH's orbits, clearing a path to a merger.
"The possibility that dark matter particles interact with each other is an assumption that we made, an extra ingredient that not all dark matter models contain," says Alonso-Álvarez. "Our argument is that only models with that ingredient can solve the final parsec problem."
Proving once again that mainstream astrophysicists can solve ANY problem (other than ones that actually affect your life) using hypothetical gnomes. Just don’t ask them to prove the gnomes actually exist, because they’ve tried and tried and tried and failed for over half a century … at your expense.
Speaking of which, who out there, beside the astrophysicists who are on the government dole, really care about dark matter and black holes? Anyone? What use do either have either of those things in these times of limited resources and great peril? Hmmmmm?
https://phys.org/news/2024-07-astrophysicists-uncover-supermassive-black-holedark.html
[quote]Researchers have found a link between some of the largest and smallest objects in the cosmos: supermassive black holes and dark matter particles.
Their new calculations reveal that pairs of supermassive black holes (SMBHs) can merge into a single larger black hole because of previously overlooked behavior of dark matter particles, proposing a solution to the longstanding "final parsec problem" in astronomy.[/quote]
So using a still unverified GNOME, they've fixed a major problem they had in their black hole theory? LOL!
[quote]In 2023, astrophysicists announced the detection of a "hum" of gravitational waves permeating the universe. They hypothesized that this background signal emanated from millions of merging pairs of SMBHs each billions of times more massive than our sun.
However, theoretical simulations showed that as pairs of these mammoth celestial objects spiral closer together, their approach stalls when they are roughly a parsec apart—a distance of about three light years—thereby preventing a merger.
Not only did this "final parsec problem" conflict with the theory that merging SMBHs were the source of the gravitational wave background, it was also at odds with the theory that SMBHs grow from the merger of less massive black holes.[/quote]
In other words, a BIG problem.
[quote]Previous merger models showed that when the SMBHs approached to within roughly a parsec, they begin to interact with the dark matter cloud or halo in which they are embedded. They indicated that the gravity of the spiraling SMBHs throws dark matter particles clear of the system and the resulting sparsity of dark matter means that energy is not drawn from the pair and their mutual orbits no longer shrink.
While those models dismissed the impact of dark matter on the SMBH's orbits, the new model from Alonso-Álvarez and his colleagues reveals that dark matter particles interact with each other in such a way that they are not dispersed. The density of the dark matter halo remains high enough that interactions between the particles and the SMBHs continue to degrade the SMBH's orbits, clearing a path to a merger.
"The possibility that dark matter particles interact with each other is an assumption that we made, an extra ingredient that not all dark matter models contain," says Alonso-Álvarez. "Our argument is that only models with that ingredient can solve the final parsec problem."[/quote]
Proving once again that mainstream astrophysicists can solve ANY problem (other than ones that actually affect your life) using hypothetical gnomes. Just don’t ask them to prove the gnomes actually exist, because they’ve tried and tried and tried and failed for over half a century … at your expense.
Speaking of which, who out there, beside the astrophysicists who are on the government dole, really care about dark matter and black holes? Anyone? What use do either have either of those things in these times of limited resources and great peril? Hmmmmm?