ρu = 7.9 * 10-29 g/cm3
It is important to note that the achieved ρ is the total mass/energy density of the Universe. In other words, it is the sum of a number of different components including both normal (baryonic) and dark matter as well as the dark energy.
3. Discussion and future work
Amazingly, the achieved result gives a density value of about one order of magnitude greater than the estimated values obtained by other methods. So maybe justified since we do not know accurately all the matter and the energy existent in the whole universe.
It’s notable that we do not have obtained a less value that would have invalidated the assumptions we have made.
Furthermore, thanks to a deep-sky census assembled from surveys taken by NASA’s Hubble Space Telescope and other observatories, astronomers came to the surprising conclusion that there are at least 10 times more galaxies in the observable universe than previously thought.[7]
This discovery might very well justify the difference between the obtained result and that estimated by astronomers.
It is customary to express the density as a fraction of the density required for the critical condition with the density parameter Ω0 .
The density parameter Ω0 is given by: