Some regions of the universe contain a minimal number of galaxies or even o galaxies at all. This specific area, which is known as a void in the scientific community, allow researchers to improve the accuracy of scientific instrument and to measure cosmic expansion at a rate which is considerably more precise than it was possible in the past, according to a new paper.
The study used data recorded with the help of the Sloan Digital Sky Survey. The voids come in a variety of shapes and sizes, but most of them lack a specific alignment, and many can be used as a standard sphere, which are objects that appear to be perfectly symmetric when distortions are absent.
In this case, the shapes of the spheres appear to have been distorted by Doppler shifts within the redshifts of close galaxies which are generated by a local velocity field and the amount of dark matter and dark energy which can be found in most of the universe. The team who elaborated the paper believes that the distortions can be modeled and precisely measured.
Researchers Use Cosmic Voids To Improve The Accuracy Of Scientific Instruments
The new system of measuring distortions around voids relies on the Baryon Oscillation Spectroscopic Survey of galaxies observed by the SDSS, which was created to measure dark energy and space curvature. The method is considerably better in comparison to the classic baryon acoustic oscillation which was used in the past. They also correlate with a basic model of a flat universe linked with a cosmological constant for dark energy and a reserved take on alternate theories.
The new method is equivalent to whit collecting data from four large-scale surveys recorded by BOSS without additional costs. It is believed that it will improve the chances of tracking down the elusive properties of dark energy.
The results are quite impressive, and they have already captured the interest of the scientific community. The new data paves the way towards future research based on data collected by upcoming instruments.
Emmy Skylar started working for Debate Report in 2017. Emmy grew up in a small town in northern Manitoba. But moved to Ontario for university. Before joining Debate Report, Emmy briefly worked as a freelance journalist for CBC News. She covers politics and the economy.