Is dark matter distrubition always near galaxies?

In summary, dark matter exists in strands and filaments throughout the cosmos, and can be detected even in areas with very little ordinary matter present by using gravitational lensing. Recent research has shown that there is no empty space in the universe, as even intergalactic space is filled with dark matter.
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RyanH42
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Is there any dark matter where no baryonic matter (which here the galaxies).I mean are we observe dark matter only around the matter ? Or dark matter can be anywhere (In empty space which there's no baryonic matter around)
 
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Yes it is thought that dark matter exists in the from of strands and filaments throughout the cosmos, much of it being where there is very little of ordinary baryonic matter present.
Because DM does interact gravitationally. galaxies tend to be present where these DM strands are more dense.
This link though not an academic reference might be helpful in explaining further.
http://www.space.com/16412-dark-matter-filament-galaxy-clusters.html
 
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thank you
 
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We can detect dark matter where little or no baryonic matter exists by virtue of gravitational lensing.
 
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Cosmologists at Penn Weigh Cosmic Filaments and Voids'
http://www.upenn.edu/pennnews/news/cosmologists-penn-weigh-cosmic-filaments-and-voids

"Dark matter ... permeates all the way to the center of the voids."

'No Empty Space in the Universe --Dark Matter Discovered to Fill Intergalactic Space'
http://www.dailygalaxy.com/my_weblog/2012/02/no-empty-space-in-the-universe-dark-matter-discovered-to-fill-intergalactic-space-.html

"A long standing mystery on where the missing dark matter is has been solved by the research. There is no empty space in the universe. The intergalactic space is filled with dark matter."
 
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RyanH42 said:
Is there any dark matter where no baryonic matter (which here the galaxies).I mean are we observe dark matter only around the matter ? Or dark matter can be anywhere (In empty space which there's no baryonic matter around)
As wess pointed out, dark matter is everywhere. It's just more dense in some places.
 

Related to Is dark matter distrubition always near galaxies?

1. What is dark matter and why is it important to study its distribution?

Dark matter is a type of matter that does not emit or interact with light, making it invisible to telescopes. However, its gravitational effects can be observed on visible matter. It is important to study its distribution because it makes up about 85% of the total matter in the universe and plays a significant role in the formation and evolution of galaxies.

2. Is dark matter always found near galaxies?

No, dark matter can be found in other locations such as galaxy clusters, filaments, and voids. However, it is most commonly associated with galaxies due to their large gravitational pull.

3. How do scientists study the distribution of dark matter?

Scientists use a variety of techniques, including gravitational lensing, galaxy rotation curves, and simulations, to study the distribution of dark matter. These methods allow them to indirectly observe the effects of dark matter on visible matter.

4. Are there any observable effects on galaxies if dark matter is not present?

Yes, the absence of dark matter would result in different patterns of motion and distribution of visible matter in galaxies. This would also affect the overall structure and evolution of galaxies.

5. Can dark matter be detected directly?

No, dark matter cannot be detected directly as it does not interact with light. However, scientists are working on experiments to detect other particles that could make up dark matter, such as weakly interacting massive particles (WIMPs).

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