Dark matter fills 'empty' space

[liquidspace]

There is now evidence dark matter fills what would otherwise be considered to be empty space.

'Cosmologists at Penn Weigh Cosmic Filaments and Voids'
http://www.upenn.edu/pennnews/news/cosmologists-penn-weigh-cosmic-filaments-and-voids

"Dark matter ... permeate 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."

In the following article the dark matter which fills 'empty' space is displaced by the particles of matter which exist in it and move through it.

'Comment on the higher derivative Lagrangians in relativistic theory'
http://arxiv.org/abs/1305.5759

"Einstein theory of gravitational fields and this gives a new perspective on the Mach principle revisiting the “absolute” acceleration concept as a natural motion in space-time deformed by the matter-energy contained therein. We refer the reader to the paper of Einstein on a related topic [9]. The relativistic theory of an Aether was discussed several time, see for e.g. [8], [9]. In this paper, our hypothesis is different and gives a relativistic theory of the deformation of continuous media (for which the geometry is described by the metric field)."

Any chance the Milky Way's halo is the deformation of continuous media?

 

[Mordred]

Any chance the Milky Way's halo is the deformation of continuous media?

.
Lets get to the heart of your posts, which applies to how geometry is described in cosmology. First off space geometry can be thought of as a mathematical representation of relations. What is the mathematical relation between A and B. Does that relation have a range? a direction? how much influence? and approximate shape?
In cosmology those relations is essentially the relations between gravity, whose contributors is Non baryonic matter (Dark matter), baryonic matter (normal matter), radiation. These together have a positive energy-density that corresponds to a positive pressure via equations of state.

http://en.wikipedia.org/wiki/Equation_of_state_(cosmology)

now the cosmological constant which is often referred to as dark energy is also a positive energy-density but its influence is negative pressure.

So the deformations on a cosmology scale is the distribution curve between positive pressure (gravity) and negative pressure (cosmological constant.)
It is true that every volume of space is filled with some form of energy density, even if it is that of a vacuum. However space is simply volume filled with the energy/mass of the universe. In and of itself space has no other properties other than volume.

http://cosmology101.wikidot.com/universe-geometry page two of this article is
http://cosmology101.wikidot.com/geometry-flrw-metric/

if you think about it the wave function of electricity is also a mathematical descriptive of its region,amount of influence and direction of influences, cosmology applications is much the same.

 

[liquidspace]

In and of itself space has no other properties other than volume.

Which is exactly what the first two articles I linked to are stating is not the case.

The second article says, "There is no empty space in the universe. The intergalactic space is filled with dark matter."

The third article I referred to then goes on to refer to the "deformation of continuous media".

If another way to refer to the deformation of continuous media is the state of displacement of the dark matter which fills 'empty' space then the state of displacement of the dark matter is the positive pressure (gravity).

 

[Mordred]

no your misinterpreting what those articles are saying. They are saying we can't see dark matter, they reside mainly in the voids between baryonic matter.

they are simply pointing that what people think of as matter is baryonic (visible matter), dark matter however is not visible and therefore what people think of as empty space isn't. Thats all they are describing

you really need to be careful of pop media literature they often misrepresent concepts in their descriptive's. Deformation of space I already explained

dark matter is the largest contributor of gravity, on cosmological scales.

 

[liquidspace]

no your misinterpreting what those articles are saying. They are saying we can't see dark matter, they reside mainly in the voids between baryonic matter.

they are simply pointing that what people think of as matter is baryonic (visible matter), dark matter however is not visible. Thats all they are describing

You are completely missing the point of the articles. The article says, "There is no empty space in the universe."

You are interpreting "There is no empty space in the universe" as there is empty space in the universe.

You are completely missing the point of this topic. The point of this topic is assuming you are capable of correctly understanding "There is no empty space in the universe" means there is no empty space in the Universe then what does that mean in terms of particles of matter's interaction with the dark matter?

The third article I posted refers to the interaction of particles of matter and the dark matter as "the deformation of continuous media".

The question I am asking is, is "the deformation of continuous media" physical evidence of curved spacetime?

Is "the deformation of continuous media" what you referred to as "the positive pressure (gravity)"?

 

[Mordred]

your right there is no empty space, its filled with the contents of the universe, please pay attention

 

[liquidspace]

your right there is no empty space, its filled with the contents of the universe, please pay attention

You are right there is no empty space, it is filled with dark matter, please pay attention. That's what "There is no empty space in the universe. The intergalactic space is filled with dark matter" means.

 

[Mordred]

dark matter is not a form of eather, there is no eather. dark matter has its own distribution density.
Space is not a substance it is simply volume. That volume is filled with the energy/mass contents of the universe. Not every cubic meter of space will have dark matter in it

 

[liquidspace]

Attempting to get back to our regularly scheduled programming...

Assuming you are someone reading this topic who is capable of understanding "There is no empty space in the universe. The intergalactic space is filled with dark matter" means exactly what it says which is dark matter fills what would otherwise be considered to be 'empty' space where the third article I linked to is correct and matter deforms the dark matter, is the deformation of the dark matter physical evidence of curved spacetime?

 

[Mordred]

actually the third article you linked has nothing to do with dark matter it has to do with ether theory

 

[Chronos]

How does this explain dark matter 'clumps' that produce gravitational lensing?

 

[liquidspace]

actually the third article you linked has nothing to do with dark matter it has to do with ether theory

Actually the third articles says, "The relativistic theory of an Aether was discussed several time, see for e.g. [8], [9]. In this paper, our hypothesis is different and gives a relativistic theory of the deformation of continuous media (for which the geometry is described by the metric field)."

Now, if you were capable of understanding "There is no empty space in the universe. The intergalactic space is filled with dark matter" means exactly what it says it means which is dark matter fills what would otherwise be considered to empty space, then you might be able to understand the third article does not have to do with aether theory as "[their] hypothesis is different" as it refers to the deformation of continuous media.

Now, assuming you were capable of understanding what this topic is all about, the question then is, if the media is the dark matter which fills 'empty' space then is the deformation of the dark matter physical evidence of curved spacetime?

 

[phinds]

Attempting to get back to our regularly scheduled programming...

Assuming you are someone reading this topic who is capable of understanding "There is no empty space in the universe. The intergalactic space is filled with dark matter" means exactly what it says which is dark matter fills what would otherwise be considered to be 'empty' space where the third article I linked to is correct and matter deforms the dark matter, is the deformation of the dark matter physical evidence of curved spacetime?

Clearly, the people who have responded do understand EXACTLY what you are contending and they (and I) are disagreeing with it because it is wrong.

As Mordred pointed out, there is space which does not have any dark matter in it.

 

[Mordred]

that article is discussing field relations, I give up believe what you want

 

[liquidspace]

How does this explain dark matter 'clumps' that produce gravitational lensing?

The dark matter 'clumps' is the state of displacement of the dark matter.

The Milky Way's halo is not a clump of dark matter traveling along with the matter the Milky Way consists of. The Milky Way's halo is the state of displacement of the dark matter the matter the Milky Way consists of is moving through and displacing.

'Offset between dark matter and ordinary matter: evidence from a sample of 38 lensing clusters of galaxies'
http://arxiv.org/abs/1004.1475

"Our data strongly support the idea that the gravitational potential in clusters is mainly due to a non-baryonic fluid, and any exotic field in gravitational theory must resemble that of CDM fields very closely."

The offset is due to the galaxy clusters moving through the dark matter. The analogy is a submarine moving through the water. You are under water. Two miles away from you are many lights. Moving between you and the lights one mile away is a submarine. The submarine displaces the water. The state of displacement of the water causes the center of the lensing of the light propagating through the water to be offset from the center of the submarine itself. The offset between the center of the lensing of the light propagating through the water displaced by the submarine and the center of the submarine itself is going to remain the same as the submarine moves through the water. The submarine continually displaces different regions of the water. The state of the water connected to and neighboring the submarine remains the same as the submarine moves through the water even though it is not the same water the submarine continually displaces. This is what is occurring as the galaxy clusters move through and displace the dark matter.

'The Milky Way's dark matter halo appears to be lopsided'
http://arxiv.org/abs/0903.3802

"The emerging picture of the asymmetric dark matter halo is supported by the \Lambda CDM halos formed in the cosmological N-body simulation."

The Milky Way's dark matter halo is lopsided due to the matter in the Milky Way moving through and displacing the dark matter.

What is referred to in the third article as the deformation of continuous media is the state of displacement of the dark matter.

If the three articles I linked to are correct then is the state of displacement of the dark matter physical evidence of curved spacetime?

If the Milky Way's halo is the state of displacement of the dark matter then is the Milky Way's halo physical evidence of curved spacetime?

 

[liquidspace]

As Mordred pointed out, there is space which does not have any dark matter in it.

Which is exactly what the first two articles I linked to are saying is not the case. That's what "there is no empty space in the universe" means.

 

[Mordred]

you can have localized regions of space whose energy-density is effectively zero. Meaning no dark matter. Energy-density is the key to what your missing. Localized GR calculations do not need to explain dark matter or dark energy as its localized influence is negligible. The only influence they need to worry about for say a stars gravitational influence is the matter of the star itself.

 

[liquidspace]

you can have localized regions of space whose energy-density is effectively zero. Meaning no dark matter.

Which is exactly what the first two articles I linked to are saying is not the case. That's what "there is no empty space in the universe" means. The articles are stating, as far as we know, there is no space which does not consist of dark matter or particles of matter.

The title of the article:

'"No Empty Space in the Universe" --Dark Matter Discovered to Fill Intergalactic Space'

From the article:

"there is no empty space"

"intergalactic space is filled with dark matter."

 

[Mordred]

I have already pointed out that, that is NOT what those articles are saying, That is how you interpreted those articles and it is wrong

 

[liquidspace]

I have already pointed out that, that is NOT what those articles are saying, That is how you interpreted those articles and it is wrong

I have already pointed out that, that IS what those articles are saying. That how you interpreted those articles is incorrect.

 

[Mordred]

then you tell me what you think space is filled with then? let's restart at square one

 

[liquidspace]

then you tell me what you think space is filled with then? let's restart at square one

See the title to this topic and read the first two articles I linked to.

 

[Mordred]

no I want your interpretation

 

[liquidspace]

Non-baryonic dark matter is not anchored to matter. Matter moves through and displaces the non-baryonic dark matter.

This is what is referred to in the third article as the deformation of continuous media. What is referred to as the deformation of continuous media is the state of displacement of the dark matter.

If the three articles I linked to are correct then the Milky Way's halo is the state of displacement of the dark matter.

If the Milky Way's halo is the state of displacement of the dark matter then is this physical evidence of curved spacetime?

 

[Mordred]

unfortunately those articles are not saying that at all. There is an acceptable term for medium, that is the intergalactic medium, or IGM for short. Baryonic matter is essentially dust. Reason being is that its percentage of the total matter content of the universe is so small.

now dark matter and baryonic matter are both influenced by gravity. Gravity affects both equally.
the problem with dark matter is that it is weakly interactive. Its only influenced by gravity and possibly other weakly interactive particles. Dark matter does not interact with the strong force like regular matter. It may or may not interact with the weak force. It does not interact with the strong force.

so take 2 particles of dark matter moving toward each other. two particles alone do not have a strong force of gravity exerting upon each other. Even if they get close enough for the strong force field strength they will not clump due to the strong force, so they will keep drifting apart. This is why the density of dark matter is usually extremely low.

As Chronos pointed out though dark matter can clump, however it needs the assistance of baryonic matters gravity to do so initially. However once dark matter is clumped its own gravity can take over. Hence gravitational lenses. However the strong force does not apply unlike baryonic matter

So dark matter is not displaced by matter, gravity works on dark matter as well as baryonic matter. Its overall density however usually remains low due to being weakly interactive.

Neutrinos is much the same but they are relativistic or near relativistic where dark matter is slow moving. A neutrino particle can pass through 1000 light years of lead without an interaction. Dark matter has the similar properties

here are the articles on the possibility of dark matter being a form of neutrino
http://arxiv.org/abs/1402.2301 and http://arxiv.org/abs/1402.4119

please note the introduction line of the first article

"Galaxy clusters are the largest aggregations of hot intergalactic gas and dark matter."

aggregations=a group, body, or mass composed of many distinct parts or individuals

in other words its density is higher at galaxy clusters

http://en.wikipedia.org/wiki/Sterile_neutrino

 

[liquidspace]

There is an acceptable term for medium, that is the intergalactic medium, or IGM for short.

The medium you refer to is the media referred to in the third article in the OP.

'NASA's Voyager Hits New Region at Solar System Edge'
http://www.nasa.gov/home/hqnews/2011/dec/HQ_11-402_AGU_Voyager.html

"Voyager is showing that what is outside is pushing back. ... Like cars piling up at a clogged freeway off-ramp, the increased intensity of the magnetic field shows that inward pressure from interstellar space is compacting it."

It is not the particles of matter which exist in quantities less than in any vacuum artificially created on Earth which are pushing back and exerting inward pressure toward the solar system.

If the three articles I linked to are corect then it is the dark matter, which the particles of matter exist in, which is the interstellar medium. It is the dark matter which is displaced by the matter the solar system consists of which is pushing back and exerting inward pressure toward the solar system.

https://en.wikipedia.org/wiki/Casimir_effect#Vacuum_energy

"a "field" in physics may be envisioned as if space were filled with interconnected vibrating balls and springs, and the strength of the field can be visualized as the displacement of a ball from its rest position"

A "field" in physics is space filled with dark matter, and the strength of the field is the displacement of the dark matter from its relativisitc rest position. This is what is referred to in the third article as the deformation of continuous media. The media is the intergalactic medium.

 

[Mordred]

If the three articles I linked to are corect then it is the dark matter, which the particles of matter exist in, which is the interstellar medium. It is the dark matter which is displaced by the matter the solar system consists of which is pushing back and exerting inward pressure toward the solar system.

How do you explain how dark matter is displaced if gravity affects both dark matter and baryonic matter yeesh.

gravity attracts ALL matter

here look up the density of space

Estimates put the average energy density of the Universe at the equivalent of 5.9 protons per cubic meter, including dark energy, dark matter, and baryonic matter (ordinary matter composed of atoms)

http://en.wikipedia.org/wiki/Outer_space
and just for good measure here is the density if interstellar space
http://en.wikipedia.org/wiki/Interstellar_medium

trust me dark matter can easily fit within interstellar space there is plenty of room

 

[liquidspace]

How do you explain how dark matter is displaced if gravity affects both dark matter and baryonic matter yeesh.

If the three articles are correct then the Milky Way's halo is the deformation of continuous media.

If this is correct then the Milky Way's halo is state of displacement of the dark matter which fill's empty space.

The Milky Way's halo is then most likely physical evidence of curved spacetime.

The positive pressure associated with the state of displacement of the dark matter is then gravity.

 

[Mordred]

I give up your not listening to the scientific facts have a good night

 

[liquidspace]

Looks like we might be able to get back to our regularly scheduled programming...

If you are able to read the articles and are able to correctly interpret "There is no empty space in the universe. The intergalactic space is filled with dark matter" to mean there is no empty space in the universe; the intergalactic space is filled with dark matter then continue reading.

The third article refers to matter as causing the deformation of continuous media. Since dark matter is now known to fill what would otherwise be considered to be empty space this can be interpreted to mean what is referred to as the deformation of continuous media is the state of displacement of the dark matter which fills interstellar space.

The Milky Way's halo is the deformation of continuous media.

The Milky Way's halo is the state of displacement of the dark matter which fills space.

The Milky Way's halo is physical evidence of curved spacetime.

 

[micromass]

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