Chalkman Posted March 21, 2015 Posted March 21, 2015 I have a question.. I saw the model that shows how clumps or strands of dark matter hold things together. There were a lot of empty space between the branches mapped. My question is does dark energy exist along with dark matter or is dark energy, that seems to be pushing apart the galaxies possibly a byproduct of black hole waste repelled somehow into empty space causing dark matter to stretch thinner at alarming speed. All galaxies have massive black holes and no one knows of anything that can escape from one. So far. Crazy..but a theory of mine.
imatfaal Posted March 21, 2015 Posted March 21, 2015 Expansion (and the accelerated expansion caused by Dark energy) widens the gap between objects (cluster and bigger normally) that are not gravitationally bound. Clumps of dark matter are interacting gravitationally - that's why they are clumps We are pretty sure that dark energy is not the output of black holes - just as you said nothing escapes a black hole (well barring Hawking radiation which isn't actually inside to out).
Mordred Posted March 26, 2015 Posted March 26, 2015 At one time I attempted to model radiation emitting from galaxies. Gamma rays,photons etc as the source of dark energy. Sounded plausible at the time. Two factors killed that idea mathematically. 1) speed of radiation c being the limit. 2) maintaining a homogeneous and isotropic distribution. (Uniform distribution, with no preferred location or direction) The problem came when one realizes this is similar to solar thermodynamic flows. Dark energy is extremely homogeneous and isotropic. It's also extremely close to zero. Regardless of where you measure it. It Is overpowered by local gravity, so expansion does not occur in gravitational bound clusters. If dark energy was a local effect radiating from sources such galaxies or Bkackholes the strength would by nature be stronger the closer to the source you get. As Pv=nRT (ideal gas laws) the localized interaction rates would be higher thus so would the temperature. variations in temperature regions creates thermodynamic flows. Nothing like the distribution of dark energy. The only way to maintain the uniformity of the cosmological constant every volume of space, must undergo a similar process that causes a negative vacuum. The rates must be uniform. What that process is, is still unknown. However it's distribution uniformity is well studied. roughly [latex]6.0*10^-10 joules/m^3[/latex] Or if you prefer [latex]7*10^-29 grams/m^3[/latex] (As a side note, if you want a good model of adiabatic flows. Look at the baryon accoustic oscillations (BAO) of the CMB.) It's process sources are different but the distribution patterns would be similar). Unfortunately DE doesn't match that type of pattern (Lol at the time I tried my model I didn't know how thoroughly baryon interactions were already mapped)
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now