Could WIMPs Interact to Form Dark Planets and Stars?

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SUMMARY

The discussion centers on the potential interactions of Weakly Interacting Massive Particles (WIMPs) and their ability to form structures akin to stars and planets. Participants speculate that if WIMPs can interact gravitationally similar to regular matter, they could condense into "dark planets" and "dark stars." However, the consensus indicates that without a mechanism for energy dissipation, such as dark electromagnetic radiation, WIMPs may not clump together effectively due to the weakness of gravitational forces. This raises intriguing possibilities for dark matter's role in cosmic structures.

PREREQUISITES
  • Understanding of Weakly Interacting Massive Particles (WIMPs)
  • Basic knowledge of gravitational interactions in astrophysics
  • Familiarity with concepts of dark matter and its properties
  • Awareness of energy dissipation mechanisms in particle physics
NEXT STEPS
  • Research the properties and interactions of WIMPs in particle physics
  • Explore theories surrounding dark matter chemistry and its implications
  • Investigate energy dissipation mechanisms relevant to dark matter
  • Examine the formation of cosmic structures in relation to dark matter
USEFUL FOR

Astronomers, astrophysicists, and researchers interested in dark matter phenomena and the formation of cosmic structures will benefit from this discussion.

MattRob
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WIMPs and "Ghost Planets"

There's very little known about WIMPs, from my understanding, but I believe there has been some speculation that they interact with each other less-than-weakly, and they most certainly do have a gravitational presence.

So, if WIMPs were to interact with each other in ways akin to how "light" matter particles interact with each other, wouldn't that imply that clouds of WIMPs would, much as regular matter in clouds of hydrogen and helium, condense under their gravity to form WIMP bodies (I would say "star", but that would be assuming WIMPs would undergo fusion with each other in such a configuration like light matter does)?

I just remember seeing some science news magazine speculating, based off of some published papers, on the possibility of WIMPs having their own series of interactions (strictly with other WIMPs) creating "dark-matter chemistry," but if they interacted in the same ways that normal matter does, then they'd form planets and stars.

But if they did that, then wouldn't the accretion of "light" matter into stars and planets accrete this dark matter as well, resulting in dark planets and stars?

(Imagine astronomers discovering that - a binary system where a 10-solar mass star orbits is red dwarf as though the red dwarf had 100 solar masses! All because the red dwarf accreted far more dark matter than light, resulting in a much greater gravitational presence than the other star. Or even a binary system - one star light, the other star dark, so that it appears a star orbits empty space!)
 
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In order for them to clump together, they would have to give up energy. Unless some form of "dark" EM radiation (or some other way to give up energy) exists then I don't see it being possible.
 
In order for things to clump there has to be some sort of force to hold them together. For WIMPS there doesn't appear to be any such force - gravity is far too weak.
 

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